Barry Leung, KoMG

• Today Is My Eighth Lesson Teaching Maths

  In @cyberpunkgame, there are street vendors everywhere scattered across Night City. The player can travel to each of them and purchase...

  math

  education

  Oct 22, 2026
• Learning Maths Does NOT Make One A Better Problem Solver In Other Areas Of Life

  In Robert Plomin's Blueprint, he challenges the conventional notion that our environment influences our destiny.

  education

  Oct 22, 2026
• What Are The Last Two Digits Of 7²⁰¹⁸?

  Maths puzzles will always be there because obviously we can use a calculator or ChatGPT to solve it. But that would defeat the point.

  math

  Oct 21, 2026
• So What's P + Q + R?

  The diagram shows three rectangles and three straight lines.

  math

  Oct 20, 2026
• How Would You Find Them All?

  This is an equation of a quadratic equation raised to a quintic equation which equals 1.

  math

  Oct 19, 2026
• A Difficult Geometry Puzzle

  A regular hexagon PQRSTU is inscribed in a circle of radius 5.

  math

  Oct 18, 2026
• Are You Smart Enough To Find All The Lines?

  A cube has a dot at each vertex, at the midpoint of each edge and at the midpoint of each face.

  math

  Oct 17, 2026
• Can You Solve This British Maths Challenge?

  As shown in the diagram, a playground is built in the shape of a regular pentagon.

  math

  Oct 16, 2026
• How Would You Find X And Y As Quickly As Possible?

  I just filmed another YouTube video today on my maths channel. It's been 3 months since my last maths upload but after seeing what one can...

  math

  Oct 15, 2026
• Instead Of Doomscrolling, I Colour

  It's been 13 months since I graduated from university. And for the same time period, I have been living in a house with 4 other people.

  design

  Oct 14, 2026
• Can A Probability Be 100%, But Still Doesn't Happen?

  Imagine throwing a dart at the line segment [0, 1]. It must land somewhere.

  math

  Oct 13, 2026
• So, What Shape Is an Orange Peel?

  Take an orange. Peel it carefully, trying to preserve the skin as one continuous piece. You will end up with something resembling a...

  math

  Oct 12, 2026
• Did You Know That Tossing A Fair Coin Isn't Fair?

  One of my favourite songs is Toss A Coin To Your Witcher.

  math

  Oct 11, 2026
• The Lewis Carroll In Me

  There was nothing so very remarkable in that; nor did Alice think in so very much out of the way to hear the Rabbit say to itself "Oh dear...

  math

  Oct 10, 2026
• Can You Solve This Ancient Oxford Challenge In 1 Minute? ⏰

  We are looking at four strange-looking graphs today. Our goal is to identify which one represents our given equation.

  math

  Oct 10, 2026
• Can You Cut This Shape Into Four Pieces And Form A Square?

  This looks like the shape of the British red cross, except I changed the colour in the middle to blue.

  math

  Oct 09, 2026
• It's Child Abuse To Force Adolescents To Spend Their Time Studying Subjects They Hate

  The system has to force people to behave in ways that are increasingly remote from the natural pattern of human behavior. For example, the...

  politics

  Oct 09, 2026
• What's Going On With These Amazing Squares?

  There are infinitely many natural numbers that can be expressed as sums of three squares in two different ways: a² + b² + c² = d² + e² +...

  math

  Oct 08, 2026
• How Would You Solve This Japanese Geometry Puzzle?

  The above figure contains five circles, which are fitted into a square with two semi-circles.

  math

  Oct 07, 2026
• A Sangaku Puzzle From Japan: Can You Calculate All The Radii?

  This is one of the many geometry puzzles that come from Japanese temples. The word Sangaku means something like 'mathematical tables'.

  math

  Oct 06, 2026
• My Fourth Lesson Of Transforming Students' Lives

  Last Saturday I finished my fourth lesson of maths tutoring with my group of students.

  math

  Oct 05, 2026
• I Don't Believe In Having To Go Above And Beyond Just To Live A Basic Life

  Everywhere I look, I see a point of no return in all facets of humanity.

  self

  Oct 04, 2026
• How Can The Triangle Help Us Solve This British Mathematical Olympiad Question?

  Let a, b and c be the lengths of the sides of a triangle. Suppose that ab + bc + ca = 1.

  math

  Oct 04, 2026
• Can You Find The Area Of The Unknown Square In 9 Seconds?

  math

  Oct 03, 2026
• Cambridge University Unironically Thinks Being Good at Maths Makes You Good at The Traitors

  It doesn't. It's completely BS. And the university's explanation reveals something much stranger about the way we romanticise mathematics.

  math

  Oct 02, 2026
• Did You Know That Closing Roads Could Speed Up Traffic?

  Hi this is Barry, the King of Math Games, also known as KoMG. Let's discuss the famous Braess' Paradox, which states that adding a road...

  math

  Oct 01, 2026
• What is The Area of The Square?

  Hint: the solution looks like an owl!

  math

  Sep 30, 2026
• What Mistake Did I Make?

  Barry takes a pack of cards, and place the four aces on the table, face down.

  math

  Sep 29, 2026
• Enclothed Cognition Is Important

  I saw a YouTube video today on a concept known as 'Enclothed Cognition'. It's the idea that the clothes we wear influence our thoughts...

  self

  Sep 28, 2026
• Can You Help Alice Find The Volume Of Water?

  Down the rabbit hole we go... 🐇

  math

  Sep 28, 2026
• Third Lesson Completed: Perspectives In Mathematics

  math

  Sep 27, 2026
• What's Happened, Happened

  What's happened, happened. It's an expression of faith in the mechanics of the world, and it's not an excuse to do nothing.

  spirituality

  self

  Sep 27, 2026
• Are You Clever Enough The Area Of The Tile?

  math

  Sep 26, 2026
• I Am Against The Romanticisation of Mathematics

  math

  education

  Sep 25, 2026
• Can You Give Each Cat A Private Room Using Only 2 Squares?

  There are 1, 2, 3, 4, 5, 6, 7, 8, 9 cats in this square.

  math

  Sep 25, 2026
• How Would You Make 20 With Just Three 3s?

  This is probably one of the shortest puzzles I have written recently.

  math

  Sep 24, 2026
• 4 Probability Paradoxes To Ponder Before Bed

  Good morning, good afternoon, and good evening, my fellow naturally intelligent humans.

  math

  Sep 24, 2026
• What's The Area Of The RED Square?

  A square is inscribed in a quarter circle. What is the area of the square?

  math

  Sep 23, 2026
• How Would You Evaluate These Integrals?

  If you ever studied calculus at high school, chances are you have evaluated these integrals at some point. Perhaps most of the time, it's a...

  math

  Sep 22, 2026
• Are You Smart Enough To Solve This Geometry Challenge In 9 Seconds?

  This one is similar to a geometry puzzle we saw yesterday.

  math

  Sep 21, 2026
• What Went Wrong At The Restaurant? Where Did The Missing Pound Go?

  Sushi Passion in Birmingham

  math

  Sep 21, 2026
• Can You Solve This Viral Harvard University Geometry Puzzle In 7 Seconds?

  These are two circles of radii 3 and 5. The black line of length 10 connects the centres of the two circles.

  math

  Sep 20, 2026
• Here's The Coolest Way To Cut A Pizza

  How do you cut a pizza of radius r into three equal parts?

  math

  Sep 20, 2026
• I Just Taught My Second Lesson

  Around two hours ago, I finished teaching maths to a group of GCSEs students in Coventry. This week we looked at circle theorems, and went...

  math

  Sep 19, 2026
• The Square Root Of 7 Is ALWAYS Missing: But WHY?

  This image of a double cube has been going viral on the internet. I guess because those 6 lines on the cube magically happen to create a...

  math

  Sep 18, 2026
• A Thin Rod Is Broken At Random Into Three Pieces

  math

  Sep 17, 2026
• If you have had a good day, you have lived a good life that day

  We need to remember that if we make it to sundown today, and can enjoy a warm hearty meal with our loved ones, we have made it safe and...

  self

  Sep 16, 2026
• Can You Solve This Book Arrangement Probability Puzzle: A Primer In Lateral Thinking

  Twelve different books are placed in a row on a shelf. In how many different ways can this be done if particular book A must never be...

  math

  Sep 16, 2026
• I Teach Better Than So-called 'Qualified' Maths Teachers With 'Experience'

  Recently I was invited by the owner of a tutoring centre in Coventry to teach mathematics to the local school children. Once again, I was...

  education

  Sep 15, 2026
• Can You Solve These 5 Random Maths Puzzles?

  First one is about slicing a cake

  math

  Sep 15, 2026
• A Monstrous Looking Sum: A Lesson In Mathematical Thinking

  math

  Sep 14, 2026
• Hilbert Space: The Secret Geometry of Infinite Dimensions

  "We must know. We will know." (David Hilbert, radio address, Königsberg, 1930)

  math

  Sep 14, 2026
• What Is The Probability That The Chord Is Longer Than The side Of An Equilateral Triangle Inscribed...

  There's more than one answer!

  math

  Sep 13, 2026
• Can You Solve This Difficult Maths Exam Question from Hong Kong?

  HKDSE: Can You Solve It?

  math

  Sep 12, 2026
• I Don't Fucking Care That AI or ChatGPT Solved The Navier Stokes Equations

  I Don't Care

  machine-learning

  math

  Sep 11, 2026
• What Is The Probability That Your Father And Mother Have Birthdays 6 Months Or Less Apart?

  Although this question has the word 'probability', it's closer to a question on basic logic.

  math

  Sep 10, 2026
• How Would You Solve This Interesting Geometry Puzzle?

  This is a semi-circle. The red lines have lengths 16 and 32 respectively.

  math

  Sep 09, 2026
• Are You Smart Enough To Find The Total Yellow Area?

  I found this puzzle from Catriona Agg on twitter.

  math

  Sep 09, 2026
• Which Integral Is LARGER? And Why?

  Hello There!

  math

  Sep 08, 2026
• I Actually Did Solve The Geometry Puzzle In 3 Seconds!

  If the inner square has an area of 7 square units, what is the area of the outer square?

  math

  Sep 08, 2026
• Can You Find The Last Digit In 10 Seconds?

  Well the answer is hidden in plain sight here. Just look at the image carefully and you should be able to find the answer.

  math

  Sep 07, 2026
• A Lateral Thinking Maths Puzzle

  A set of positive integers has sum 100. So what's the maximum value their product can be?

  math

  Sep 06, 2026
• When Multiplied By Itself, Which Number Is Equal To 12,345,678,987,654,321?

  Do You Want To Win A Million?

  math

  Sep 06, 2026
• An Ancient Geometry Puzzle From A 1998 Textbook

  What's the value of k?

  math

  Sep 05, 2026
• How Would You Find The YELLOW Area In 12 Seconds?

  We know that the area of the red square is 12 🎯

  math

  Sep 04, 2026
• Two Maths Puzzles Hidden By Lewis Carroll

  The following is an excerpt from A Tangled Tale by Lewis Carroll. He is, of course, best known as the author of Alice's Adventures in...

  fiction

  Sep 04, 2026
• I Just Want To Live

  Between The Platforms

  self

  Sep 03, 2026
• Let's Try This 1997 Maths Exam Question From Cambridge University

  Wording this sort of question is a real headache for the examiners. Suppose you guess wrong; how can you then prove your guess by induction...

  math

  Sep 03, 2026
• A Very Difficult Geometry Puzzle From 2008: Can You Solve It In 1 Minute?

  A round table has radius 4. Six rectangular place mats are placed on the table.

  math

  Sep 02, 2026
• A Classic Probability Teaser With Lewis Carroll: When Are Both Balls Red?

  Please stay for Lewis Carroll's Pillow Problem at the end 🛌

  math

  Sep 02, 2026
• My Favourite Quotes From Riftbound Trading Cards

  I've always loved League of Legends, not least their fervently motivational music videos like Legends Never Die and Warriors.

  poetry

  Sep 01, 2026
• A Maths Challenge: How MUCH Of The Field Is Planted By Me?

  math

  Sep 01, 2026
• Can YOU Find The ODD One Out In 9 Seconds?

  Similar but not quite ...

  philosophy

  Aug 31, 2026
• Are You Smart Enough To Solve Aristotle's Wheel Paradox? 🎡

  math

  Aug 31, 2026
• Can YOU Pick The RIGHT Relation?

  I designed a flag using blue triangles, small white squares, and a red center square, as shown.

  math

  Aug 30, 2026
• Can You Solve This MIT Geometry Puzzle In 8 Seconds?

  I probably solved it in 1 minute and came up with four different solutions!

  math

  Aug 30, 2026
• An Oxford University Maths Admission Question

  Universities have sadly become ideological echo chambers that indoctrinate students with certain political agendas. It used to be about...

  math

  Aug 29, 2026
• Are You Smart Enough To Solve This Old USAMO Maths Problem From 1973?

  When I first looked at this maths problem, it looked like a fairly intimidating system.

  math

  Aug 29, 2026
• Can You Figure This Out: A Maths About Circular Cones 🔴

  What is the ratio of the rise of the liquid level in the narrow cone to the rise of the liquid level in the wide cone?

  math

  Aug 28, 2026
• What Does A Riemann Integral Do?

  A Complicated Method To A Simple Integral

  math

  Aug 27, 2026
• Here's What Cambridge University Asked In 2011: Now Are You Smart Enough To Solve It?

  Let's learn some maths about sketching functions together

  math

  Aug 27, 2026
• Here's How China Discovered The Pythagorean Theorem Before Pythagoras

  Everyone always jokes about the impracticality of Pythagoras Theorem in real life. And as someone who has studied maths at university and...

  math

  Aug 26, 2026
• A Response To "Britain's Bloated University System Is A Drain On The Economy"

  Employers are fuelling the degree myth by demanding qualifications their jobs don't need

  education

  Aug 25, 2026
• Can You Find The RED Area in 8 Seconds?

  Or Can You Do It In Your Head?

  humor

  Aug 24, 2026
• 4 Challenging Maths Problems To Try Before You Sleep

  Can You Figure Them Out?

  math

  Aug 24, 2026
• This Is An Intellectual Country Club

  I didn't know what consultant firms were until my first year of university. After chatting to the other students and doing a bit of...

  education

  Aug 23, 2026
• So How On Earth Is 8i Equal To INFINITY?

  These 4 Simpsons Math Jokes Are Too Smart for Most People

  math

  Aug 23, 2026
• Can You Solve This Maths Olympiad for Girls Problem?

  A British Geometry Challenge

  math

  Aug 22, 2026
• A Deep Dive Into An Oxford University Maths Exam 🐂

  A Maths Exam For Prospective University Students

  math

  Aug 21, 2026
• A Selfish Genius Wants More Money. Can You Help Him Get It?

  philosophy

  Aug 21, 2026
• Truth Hidden In Plain Sight

  Cyberpunk2077

  fiction

  Aug 20, 2026
• Mathematical Magic with a Matrix

  Magic squares have intrigued mathematicians for more than 2,000 years. In the traditional form the square is constructed so that the...

  math

  Aug 20, 2026
• I Saw This Jumping Pegs Puzzle On 3blue1brown's Page

  Here's how I solved it

  math

  Aug 19, 2026
• How Would You Divide 3 Cupcakes Among 5 People?

  Such that the smallest piece of cake is greater than 1/5?

  math

  Aug 19, 2026
• So Who Gets There First?

  math

  Aug 18, 2026
• Think You Are Smart Enough TO Make £200K Working For The British Government?

  Solve This Geometry Puzzle

  math

  Aug 18, 2026
• 7 Mathematical Fallacies To Ponder Before You Sleep

  or after breakfast

  math

  Aug 17, 2026
• Here's How Albert Einstein Proved Pythagoras Theorem When He Was 11

  math

  Aug 16, 2026
• The Way Things Used To Be

  Cyberpunk 2077

  work

  Aug 15, 2026
• How Would You Solve This Difficult Oxford University Maths Challenge?

  Can you solve this 5-part logic puzzle?

  math

  Aug 15, 2026
• A Movie Math Problem Nathan Solves

  Movie X + Y

  math

  Aug 14, 2026
• 7 Books I Have Been Reading

  I must admit that I too have fallen prey to the pandemic of doomscrolling. That said, I still have bouts of focused reading from time to...

  books

  Aug 13, 2026
• Scientists Just Discovered Black Holes Can Be ANY Shape

  And It Breaks Everything We Thought We Knew

  space

  science

  Aug 13, 2026
• What's Your Dream?

  Recently I have come across many of Simon Squibb's Instagram reels, where he interviews people on the streets, asking them what their...

  self

  work

  Aug 12, 2026
• Are You Smart Enough To Solve These 7 Brain Teasers?

  Instead of highly mathematical puzzles, let's take down a notch and have some fun solving these 7 brain teasers instead.

  math

  Aug 11, 2026
• A Multiplayer Game of Backgammon

  self

  Aug 10, 2026
• Let's Look At This 2018 Maths Exam For Gifted Students in Britain Together

  Okay to be clear, this is a practice paper that follows the Pearson Edexcel Syllabus, and was designed for first assessment Summer 2018.

  math

  Aug 09, 2026
• I Found This Wine Measuring Problem In A Cinema in Banbury: Can You Solve It For Me?

  A barrel contains exactly 9 litres of red wine.

  math

  Aug 08, 2026
• Can you find the 3 Areas? 🟦🟧🟥

  The figure above shows a unit square target for shooting on the rectangular coordinate plane. The target is divided into three regions 1, 2...

  math

  Aug 07, 2026
• Actually You Will Never Be Correct

  A Tricky Question From MIT Puzzle Club

  math

  Aug 05, 2026
• Even A 6 Year-Old Can Solve This. But Can You?

  Either you roll a 12-sided fair die once. Either you roll a 6-sided fair die twice.

  math

  Aug 05, 2026
• 7 Years Ago, I Solved Over 6,000 Maths Puzzles

  Back in secondary school, I used to look forward to solving maths puzzles on my laptop after dinner.

  math

  Aug 04, 2026
• So Which Outcome Is More Likely? A or B? Or Both?

  Here's a fun teaser for you.

  math

  Aug 04, 2026
• An American President's Proof of The Pythagorean Theorem

  US President: James A Garfield

  math

  Aug 03, 2026
• How Would YOU Find The Total Shaded Area?

  This is another geometry puzzle by Catriona Agg on X.

  math

  Aug 03, 2026
• What Is The Area Of The Square?

  The circle has a radius 1. The diagonal of the square extends to be a tangent of the circle. The circle touches the black lines at three...

  math

  Aug 02, 2026
• A Critique of The Dark Night of Mathematics by Kirwin Hampshire

  The following is a Substack essay on the existential implications of AI for mathematics by Kirwin Hampshire.

  math

  Aug 02, 2026
• How Would You Tether Your Goat?

  A goat is tethered to the edge of a circular paddock, with a lead adjusted so that the goat can eat just half of the field.

  math

  Aug 01, 2026
• Life Is a Game of Musical Chairs

  It's an unfortunate reality of the human condition that there are more people vying for an ever dwindling number of musical chairs.

  work

  Jul 30, 2026
• Wilnecote, Middleton Lakes, Kingsbury & Echills Wood Railway

  Life itself is the best game there is to play. You as a character get to explore the uncharted lands of the map.

  travel

  Jul 30, 2026
• Write For Math Games

  A Publication for the Best Maths Puzzles on Medium

  math

  Jul 30, 2026
• The Public Goods Game

  You Are Not So Smart by David McRaney

  economy

  Jul 29, 2026
• A Maths Puzzle About Pirates Shooting In A Circle🏴‍☠️ 🪎

  Here's a classic maths retold: 1,024 pirates stand shoulder to shoulder in a circle, numbered 1 through 1,024. On the captain's whistle...

  math

  Jul 29, 2026
• The Consciousness Curse

  Shard from Cyberpunk 2077

  poetry

  Jul 29, 2026
• Women in High Paying Jobs

  Jordan Peterson's Lecture

  work

  feminism

  Jul 28, 2026
• How Can I Monetise This?

  I used Claude to create this HTML-based interactive maths puzzle. (Please click the link above to test it yourself!)

  programming

  Jul 28, 2026
• Let's Look At This 2026 Maths Exam For Gifted Students In Iraq

  I was scrolling on Reddit today and came across this difficult maths exam from Iraqi High School for gifted students.

  math

  Jul 28, 2026
• Are You Smart Enough To Find The Sum Of Angles?

  Sometimes I use AI to generate my blog posts on Medium. The thing is I am doing this for money like I don't care too much anymore about...

  math

  Jul 27, 2026
• Twin Stars: Deng Yu, Hong Wang, and the Proofs That Moved A Century-Old Mountain !

  On July 23, 2026, at the International Congress of Mathematicians in Philadelphia, the Fields Medal went to four mathematicians. Two of...

  math

  Jul 27, 2026
• The Most Productive Failed Walk in History

  When there's no route, stop optimizing and redraw the map.

  math

  Jul 26, 2026
• How To Find The Arc Length And Its Surface Area?

  In this article, we will take a deep dive into the derivations of the arc length of a curve and the surface area of the revolution of a...

  math

  Jul 25, 2026
• Do You Think You Can Study Maths At Oxford University?

  The function f, defined for whole positive numbers, satisfies f(1) = 1 and also the following rules

  math

  Jul 24, 2026
• Who Are You? Who Am I? Who Are We?

  If someone asks you the question, 'Who are you?', how would you answer? Perhaps you will say your name, followed by your country of origin...

  self

  Jul 23, 2026
• A Classic Maths Puzzle: How Many Cats Are Needed?

  The answer might not be what you think

  math

  Jul 23, 2026
• About Vegetarianism and Killing for Food

  I came across Dr Natasha Campbell-McBride's blog post on vegetarianism. I believe it is one of the most important posts anyone should read...

  food

  climate-change

  Jul 22, 2026
• Should You Roll Or Not? - A Counterintuitive Maths Puzzle

  Two bullets are loaded into a gun's round barrel consecutively.

  math

  Jul 22, 2026
• So How Does The Koch Snowflake Have Finite Area?

  Following part one of the series, we will now look at the area of a Koch snowflake starting with an equilateral triangle with a side length...

  math

  Jul 21, 2026
• What If Even Your Point of View Is Uncertain?

  Quantum Physics Says It Can Be

  science

  Jul 21, 2026
• Even A 6 Year-Old Kid Can Solve This In 7 Seconds. But Can You?

  The area of a triangle is 1/2(b)(h), where b is the base and h is the height.

  math

  Jul 20, 2026
• How Does The Koch Snowflake Have Infinite Perimeter?

  What is the perimeter of the above Koch snowflake starting from an equilateral triangle with side length 1?

  math

  Jul 20, 2026
• Student Finds Embarrassing Error in Cambridge Exam!

  The Cambridge IGCSE is the international equivalent of England's GCSE, a qualification typically taken by students aged 14 to 16.

  math

  Jul 19, 2026
• Are You Smart Enough To Get Into Cambridge University?

  math

  Jul 18, 2026
• A Memoir of Berry Picking

  My Chinese name is 梁信廉, and the English translation of that is 'Leung Shun Lim'. That said, I also have an English name (Barry) so that the...

  travel

  food

  Jul 18, 2026
• What's the Area between the Curve and the x-axis?

  This is the Witch of Agnesi, a bell-shaped mathematical curve named after the Italian mathematician Maria Gaetana Agnesi, famous because...

  math

  Jul 17, 2026
• Why Babies Spit Out Vegetables

  Because they are unhealthy and it's your sign to stop ingesting these toxic green leaves

  food

  Jul 17, 2026
• How Many Duplicate FIFA World Cup Stickers Should You Expect?

  A World Cup Maths Puzzle

  math

  Jul 15, 2026
• Hawking's Black Hole Prediction Faces a Mathematical Challenge

  A decades-old assumption that extremal black holes couldn't exist has been overturned by a surprising new proof.

  space

  Jul 14, 2026
• Don't EVER Try This Sum Of Sums Problem!

  The challenge for you is to solve for x.

  math

  Jul 13, 2026
• Do You Think YOU Can Solve This In 10 Seconds?

  math

  Jul 13, 2026
• Can You Evaluate This Without Using The Square Root On The Calculator?

  My challenge for you today is to find the value of this expression.

  math

  Jul 12, 2026
• New Mathematics Breathes Life Into Geometry's Most Ancient Mysteries!

  More than 2,200 years ago, the Greek geometer Apollonius of Perga posed a deceptively simple question: How many circles can touch three...

  math

  Jul 12, 2026
• Pictures From Hinckley & Wolverhampton

  I really think society is collapsing. People are struggling around the world. They cannot get any jobs to save their lives.

  travel

  Jul 11, 2026
• When Infinity Stops Making Sense: 7 Mathematical Paradoxes

  "Infinity is not just a very large number. It's a place where logic begins to behave in ways that seem impossible."

  math

  Jul 11, 2026
• Don't Get Fooled By This Oxford University Question!

  A red herring in plain sight

  math

  Jul 10, 2026
• Are You Smart Enough To Solve This In 7 Seconds?

  math

  Jul 09, 2026
• An 80-Year-Old Puzzle That FINALLY Changed Number Theory!

  math

  Jul 09, 2026
• How Quickly Can You Come Up With All 3 Solutions?

  A Geometry Problem

  math

  Jul 08, 2026
• A Slice of Coventry, United Kingdom

  Through Friary, Arboretum, Chapel, Tombstones and Everything in Between

  travel

  history

  Jul 08, 2026
• A Surprising Game Theory Challenge

  Not What You Think!

  math

  Jul 07, 2026
• A Cambridge University Geometry Puzzle

  The shape MNOP is a square of perimeter of 40 cm and has two lines of reflectional symmetry.

  math

  Jul 07, 2026
• How Would YOU Evaluate This INFINITE Series From Cambridge University?

  Let me know your approach!

  math

  Jul 06, 2026
• A 300-Year-Old Geometry Puzzle Finally Has an Answer

  The first known shape that cannot pass through itself has been discovered, settling a mathematical question born from a royal bet

  math

  Jul 06, 2026
• Can You Solve This MIT Probability Puzzle? 🇺🇸

  The figure shows a 4-digit password lock. Each gate has the digits 0–9.

  math

  Jul 05, 2026
• A Fun Cambridge University Maths Challenge From The Year 2023: Can You Do It In Your Head?

  I feel like because I have been posting daily maths puzzles over the past few years, whenever I look at a solution to any maths question, I...

  math

  Jul 05, 2026
• Think You Can Pass Cambridge University's Difficult Admission Test?

  All so-called math or science communicators are just rehashing existing ideas and materials. To be clear, there are more than enough...

  math

  Jul 04, 2026
• The Most Natural Mathematician

  It's not a badge of honour to study mathematics through coffee-fuelled late nights. It's not cool to have to sacrifice health or happiness...

  math

  education

  Jul 03, 2026
• Do You Think You Are Smart Enough To Study At Cambridge?

  This question comes from Cambridge University's Test of Mathematics for University Admission. To be clear, this is designed for students...

  math

  Jul 03, 2026
• What's The Volume Of The Vase?

  A Very Very Interesting Calculus Problem

  math

  Jul 02, 2026
• Can You Solve This EASY Oxford University Maths Question?

  This puzzle comes from an Oxford University's mathematics admission test. I must say back then we didn't have any AI that would scramble...

  math

  Jul 01, 2026
• The Coin Flip Hidden Inside Every Cubic Equation

  Somewhere in the Mediterranean, around 500 B.C., a group of men threw their colleague overboard for doing mathematics.

  math

  Jul 01, 2026
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• Can You Solve This Very Very Tricky Oxford University Maths Question?

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• What Does A Ham Sandwich Have To Do With Maths?

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• 8 Maths & Science Jokes Explained 🤡😹

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  Jun 28, 2026
• An Oxford University Challenge: Does Alice Win Or Is It A Draw?

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• A Roundabout Puzzle: Can 12 Roads Be Made Safer?

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• What Is The Probability That The First Ball Barry Took Was Red? 🔴🔵

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  Jun 26, 2026
• When Is A Function Differentiable?

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• A Triple Summer

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• An American Maths Problem A Day Keeps The Teacher Away 🍎🩺

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  Jun 24, 2026
• 7 Elegant Mathematical Proofs Without Words

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• The Art and Science Of Maths Communication

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  Jun 23, 2026
• The Rubik's Cube Is a Tiny Philosophy Machine

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  Jun 23, 2026
• A Geometry Puzzle With 3 Circles

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  Jun 22, 2026
• This Equation Looked in the Mirror - and Drew Itself!

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  Jun 22, 2026
• Fighting Risks Injury And Is Unnecessary If There's Enough Food For All

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• Why Use Radians in Calculus?

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  Jun 21, 2026
• French Is The Only Thing I Remember From My (Maths) Degree

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• Can You Find The Heaviest Ornament?

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  Jun 18, 2026
• 7 Mathematics Exam Questions From 1926, City of Birmingham University Education

  Yesterday I ventured to the birthplace of the infamous street gang Peaky Blinders - the City of Birmingham.

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  Jun 18, 2026
• A Spacecraft Problem: Can You Solve It?

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  Jun 17, 2026
• The World Does Not Play by Your Rules

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  Jun 16, 2026
• Who Gets Their Tea Cooler Then?

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  Jun 15, 2026
• Can You Separate 66 Coins?

  Happy Birthday To Myself and Those Who Happen To Share The Same Birthday

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• Here Are Some YouTube Thumbnails

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• How Many Coins Does The 12th Pirate Get?

  So a group of 12 pirates agree to divide a treasure chest of gold coins aong themselves as follows.

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  Jun 14, 2026
• How'd You Find The Shaded Region?

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• You Can't Win This Game

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  Jun 12, 2026
• A Mathematical Calendar Puzzle

  Today's puzzle comes from a mathematical calendar my good friend and Liminal Chief Builder Sonny Vu.

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  Jun 12, 2026
• How Long Is The ZigZag Line?

  I solved this in 5 seconds really

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  Jun 11, 2026
• How To Find The Area Of The Annulus?

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  Jun 10, 2026
• A Brief History Of Calculus

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• What P = NP Would Actually Mean

  Imagine a lock with a billion billion possible keys.

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  Jun 09, 2026
• Which One Is The Correct Choice?

  I have been posting once a day on YouTube and it's good to see that our channel is growing steadily.

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  Jun 07, 2026
• Calculate The Whole Perimeter!

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  Jun 06, 2026
• What Is The Radius Of The Circle?

  Eight semicircles line the inside of a square with side length 2 as shown.

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  Jun 06, 2026
• How Big Is The Red Area?

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  Jun 05, 2026
• Can You Find The 28th Coefficient?

  Sometimes a polynomial problem looks like it's asking you to multiply out a huge expression.

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  Jun 04, 2026
• Bagot's Castle in Baginton & Bridge View Light Railway

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• How Would You Find The Radius?

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  Jun 01, 2026
• Are You More Clever Than A 8 Year-Old?

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  May 31, 2026
• We Need To Start Planting Female Trees

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  May 30, 2026
• The Monster Group: The Largest Symmetry Nobody Expected

  Mathematics has many ways of making ordinary language fail.

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  May 30, 2026
• It's Time To Take YouTube Seriously

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  May 29, 2026
• The Fibonacci Sequence Is Hiding Inside 1/89

  Some mathematical facts feel inevitable.

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  May 29, 2026
• Do NOT Solve This With Calculus!

  At first glance, this maths puzzle appears to require multivariable calculus.

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  May 28, 2026
• Life Is The Best Video Game There Is

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  May 27, 2026
• What If the Universe Has No Edge and No Centre?

  The strange topology at the frontier of cosmology, and what a video game from 1980 has to do with the shape of everything

  space

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  May 26, 2026
• Slave To The Algorithm

  I think we are all slaves to something. Certainly, I don't mean we are owned by someone else as property to extract labour out of.

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  May 25, 2026
• Cavalieri's Principle: Calculus of the Ancient Times

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  May 25, 2026
• Apparently Researchers Are Astonished That AI Cracked An 80-year-old Mathematics Challenge

  The late Hungarian mathematician Paul Erdős thought he had the last word on a geometry problem. Now an OpenAI chatbot has proved him wrong.

  artificial-intelligence

  May 24, 2026
• How Much Of The Large Triangle Is Shaded?

  The diagram shows an equilateral triangle divided into nine smaller equilateral triangles, with two additional lines.

  math

  May 23, 2026
• What's The Height In The Middle?

  This is one of those geometry challenges you must try

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  May 23, 2026
• I Literally Solved This In 3 Seconds

  What's the dog's height?

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  May 22, 2026
• How Would You Calculate This Infinite Product?

  Here's an exciting maths puzzle about a product of infinitely many terms.

  math

  May 21, 2026
• Can You Find The Shaded Area?

  Geometry Challenge: 4 circles and one triangle

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  May 20, 2026
• To Make A Living Is To Find Food

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  May 18, 2026
• I Have Run Out Of A CANVA Whiteboard

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  May 17, 2026
• Can You Solve This Japanese Geometry Problem?

  Sangaku Challenge

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  May 17, 2026
• So That's Why 6 Was Afraid Of 7

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  May 16, 2026
• So How Big Is The Biggest Prime Number?

  A two-thousand-year quest to find the largest prime, and the man who found it

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  May 15, 2026
• Why Doesn't The Integral Equal Zero?

  An interesting paradox in mathematics and calculus

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  May 14, 2026
• Are You Smarter Than A 3rd Grader? 3rd Grade Homework Troll Triangles

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  May 14, 2026
• Can You Solve This Volume Of Revolution Question?

  Don't forget to repost this problem!

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  May 13, 2026
• How To Solve The Pythagoras Pie Puzzle?

  This is A mathematically delicious mystery

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  May 13, 2026
• Mathematicians Finally Crack The Famous 'Moving Sofa Problem'

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  May 11, 2026
• Can You Crack This Difficult Geometry Doughnut?

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  May 10, 2026
• Can You Solve This Tricky Oxford Admission Question?

  A Challenge On Functions

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  May 08, 2026
• What's The 2008th Term?

  I think kids don't like mathematics because it's a very unnatural pursuit. Any healthy kid wants to go outside and play in the sun, they...

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  May 07, 2026
• No Child Actually Likes Studying Mathematics

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  May 05, 2026
• Are You Smarter Than Oxford Students?

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  May 05, 2026
• Can You Do This Cryptogram Puzzle?

  This cryptogram puzzle has more than one possible solution.

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  May 03, 2026
• I Don't Think A 9 Year-Old Can Figure This Out. But Can You?

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  May 02, 2026
• Maths Graduates Aren't Special

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  May 02, 2026
• An Oxford University Math Challenge For You!

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  May 01, 2026
• The Rings Are Linked: Can You Find The Distance From Top To Bottom?

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  Apr 30, 2026
• What Is The Ratio Of The Area Of The Shaded Square To The Area Of The Large Square?

  Do you prefer the puzzle provides the multiple choices or not? Let me know in the comments.

  math

  Apr 29, 2026
• A Math Challenge: Can You Find All The Paths?

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  Apr 29, 2026
• A Bike Accident Ruined My Laptop :(

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  math

  Apr 27, 2026
• RFK Jr and The US Department of Health and Human Services Should Hire Me To Be Their Math...

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  politics

  Apr 26, 2026
• What is the product of all positive odd integers less than 10000?

  This product might look huge, but there's a pattern hiding in it - it's just all the odd numbers multiplied together.

  math

  Apr 26, 2026
• Can You Find X In 6 Seconds?

  Here we have different powers of 10 raised to some other powers.

  math

  Apr 25, 2026
• An Unexpected Quant Interview Question: Can You Figure It Out?

  We have a 4 by 6 grid, and we fill it with the numbers 1 through 24 at random without repetition. So what is the expected value of the...

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  Apr 24, 2026
• Coventry Can Be Beautiful

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  Apr 23, 2026
• The AI Tutoring Crisis Was Entirely Predictable

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  Apr 22, 2026
• Can You Solve The Hat Party Puzzle?

  According to Ted Kaczynski's Industrial Society and Its Future, a surrogate activity is one that is directed toward an artificial goal that...

  math

  Apr 21, 2026
• Who Has A Winning Strategy? A Quant Interview Puzzle

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  Apr 21, 2026
• Can All the Pieces Be Equal?

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  Apr 20, 2026
• A Mathematical Paradox: Gabriel's Horn

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  Apr 18, 2026
• What's Going To Happen Next?

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  Apr 16, 2026
• You Can Probably Solve This In 10 Seconds. Cuz I Certainly Did.

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  Apr 16, 2026
• Can You Find P + Q?

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  Apr 15, 2026
• Can You Find All Different Looking Octahedrons? (In 60 Seconds)

  Honestly just ignore the (In 60 Seconds). It's merely there to attract readers.

  math

  Apr 15, 2026
• Can You Solve This 2023 MIT Integration Bee 🐝?

  Integral Calculus with Nested Fractions

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  Apr 14, 2026
• People Do Enjoy Reading AI-Generated Content on Science and Mathematics

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  artificial-intelligence

  Apr 13, 2026
• Are You Smarter Than A 5 Year Old?

  A Basketball Match

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  Apr 13, 2026
• The Number Of Diagonals That Can Be Drawn In A Polygon Of 100 Sides Is?

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  math

  Apr 12, 2026
• What Is Permutation and Combination?

  A No Nonsense Guide Most Math Teachers Don't Know And Won't Teach

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  Apr 10, 2026
• I Like Going To The Cemeteries

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  spirituality

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  Apr 09, 2026
• These Are Two Circles: What's The Red Area?

  They are not concentric. And the lengths 18, 10 and 10 cut through the centre of the red circle if extended infinitely.

  math

  Apr 09, 2026
• How Would You Find The Average?

  So we have numbers 1, 3, 5, 7 and 8. In each digit slot, each of these numbers is equally like to be chosen.

  math

  Apr 08, 2026
• When Is The Plane Inside The Cube?

  Our Substack newsletter is rising!

  math

  Apr 07, 2026
• Math Games | Beyond Medium.com

  I am starting this Substack newsletter for Math Games because I want to tackle problems with you that LLMs cannot fully solve yet. If you...

  math

  Apr 06, 2026
• What's The Probability The Entire Grid Is Blue? What Happens When You Rotate It?

  I could have used the title 'Are You Smarter Than An X Year-Old?' Perhaps it would grab more attention, anyway it doesn't really matter.

  math

  Apr 06, 2026
• Subscribe To Math Games on Substack

  An interactive version of this can be found here

  math

  Apr 05, 2026
• Are You Smarter Than A 6 Year-Old?

  A Probability Puzzle

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  Apr 05, 2026
• It's Time To Take Life Seriously

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  Apr 04, 2026
• Can You Fry An Egg To Solve This Math Puzzle?

  These are two concentric circles, just like a perfect sunny side up egg.

  math

  Apr 03, 2026
• So Trump's Casino Empire Made Millions, Then Lost Billions

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  economy

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  Apr 02, 2026
• A Geometry Puzzle About A String

  I came across this interesting puzzle on Presh Talwalker's channel on YouTube today. It's got two solutions to it. The complicated one uses...

  math

  Apr 01, 2026
• Who's Lying? A Night with Vampires & Werewolves

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  math

  Mar 31, 2026
• #1 Building In Public: Math Games

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  programming

  Mar 30, 2026
• Mathematics in Secret. Then She Changed the History of Numbers.

  Sophie Germain studied at night, published under a man's name, and corresponded with the greatest mathematicians alive. The work she left...

  math

  Mar 30, 2026
• Are You Smart Enough To Find The Length?

  I was doing this geometry problem with my friend as a contest to see who would get to the answer faster. After trying for 30 minutes, we...

  math

  Mar 29, 2026
• Let's Make Mathematics a Little More Beautiful

  An interactive version of this can be found here

  math

  Mar 29, 2026
• Can You Solve This Sweet Counting Puzzle From Oxford University?

  School holidays can be boring. Miriam and Adam know this well. So they've struck a deal: they'll pass the time eating sweets - but their...

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  Mar 28, 2026
• The Solution To Young Sherlock's Math Equation Is Lying In Plain Sight! But Can YOU See Spot It?

  The mystery TV series Young Sherlock recently premiered on Amazon Prime Video. It is inspired by Andrew Lane's Young Sherlock Holmes book...

  math

  Mar 28, 2026
• Can You Help The Fox?

  A Math Puzzle

  math

  Mar 27, 2026
• How Far Apart Are These 2 Circles?

  A common geometry puzzle is about finding the area of the intersections of two circles.

  math

  Mar 27, 2026
• A Proof By Contradiction That We Must Be Self-Interested

  I have thought about this a couple years ago. Back then, I was contemplating the ideas of selfishness and selflessness in humans.

  philosophy

  self

  Mar 26, 2026
• Try This Running Math Puzzle!

  It actually doesn't matter how long the track is. Although if it helps you solve the puzzle, you can assign any length to the track.

  math

  Mar 26, 2026
• Can You Find The Probability?

  I am not sure if there's any real world application to this. That said, I do know that these puzzles are a great way to kill time and...

  math

  Mar 25, 2026
• Can You Find The Area Of The Red Intersection?

  Hello my dear friends of Math Games, if you have been enjoying our daily puzzles, consider making a contribution here. It would help fuel...

  math

  Mar 24, 2026
• A Very Old Math Question From Cambridge University

  A Calculus Challenge From 1991

  math

  Mar 23, 2026
• Can You Find The Area Of The Orange Square?

  By find I mean to compute the area of the square given a 3–4–5 triangle inscribed inside.

  math

  Mar 22, 2026
• These Are 4 Right Triangles. What's The Area Of One Triangle Only?

  I could think of at least two ways of solving this geometry question.

  math

  Mar 21, 2026
• A Fly & Spider Math Puzzle

  In the following figure, A is Alf, the fly, and B is Buridan the spider, at diagonally opposite corners of the floor of the room. Alf is...

  math

  Mar 20, 2026
• The Other Side Of Life On New House Organic Farm in Kniveton

  Working, learning and living with Bob and friends (13th March - 18th March)

  travel

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  Mar 18, 2026
• Are You Smart Enough To Find What Fraction Of The Decagon Is Shaded?

  A Geometry Challenge with 2 Solutions!

  math

  Mar 18, 2026
• So How Far Has The Ant Walked?

  This is a question on the application of complex numbers.

  math

  Mar 14, 2026
• That's Why McDonald's CEO Only Took A small Bite Of The BIG Arch

  So recently there's a popular video circulating on the internet about the McDonald's CEO Chris Kempczinski trying the BIG ARCH™ burger on...

  food

  Mar 13, 2026
• Apparently There's A Math Problem In America

  If I were to tell you that your go-to meal at the local steakhouse has a price reduction of 600%, what would you do?

  math

  Mar 12, 2026
• Can You Solve This Calculus Challenge: A Slanted Revolution?

  Here's a hint: Rotational Matrix

  math

  Mar 11, 2026
• English Was My Favorite Class

  I have been trying to slow down when it comes to writing. Since ChatGPT came out, I too have unfortunately been at the mercy of the...

  writing

  Mar 10, 2026
• There's A Mistake in Math Genius Mary Adler's Calculus Problem

  Can you tell me what it is?

  math

  Mar 09, 2026
• University Has Become A Wealth Extraction Machine And Taught Me Absolutely Nothing Useful

  And the truth about mathematics education

  math

  Mar 05, 2026
• Sheep

  Dorothy Wellesley

  poetry

  Mar 05, 2026
• Here's How Archimedes Measured a Curve Without Calculus

  Archimedes tackled the long-standing problem of finding the area of a parabolic segment (the region between a parabola and a chord). In...

  math

  Mar 04, 2026
• Can You Solve This Calculus Puzzle By Oxford University?

  This is a fairly standard exercise in integral calculus. I guess the standards for getting into Oxford to read mathematics is dropping.

  math

  Mar 02, 2026
• Are You Smart Enough To Study At Oxford University?

  A simple cubic equation sort of looks like a snake meandering through the origin. Adding other terms changes the way it meanders, which...

  math

  Mar 01, 2026
• About Me - Barry Leung

  A Descendant of the Dragon, Barry Leung first drew breath beneath Lion Rock Harbour. In his youth, he journeyed to the old stone of Albion...

  history

  Feb 25, 2026
• Making Sense of Gravitational Time Dilation & Special Relativistic Time Dilation

  An Excerpt from A Brief History of Time

  math

  science

  Feb 24, 2026
• Our Mission

  Mathematics has always been the scaffolding because my true passion lies in becoming a well-read Renaissance man.

  math

  Feb 22, 2026
• Can ChatGPT, Google's Gemini and Microsoft's Copilot Pass The Apple-Orange Interview At Apple?

  Yes they can, but at what cost?

  artificial-intelligence

  Feb 21, 2026
• How Big Is The Red Area?

  I was walking by the cathedral in town today and found out it was Ash Wednesday today thanks to the congregation of people sat at the front...

  math

  Feb 18, 2026
• Are You Smart Enough To Find A + H?

  Come not between the dragon and his wrath. Apparently this is a quote from Shakespeare, and I happened to have seen this on a dragon...

  math

  Feb 17, 2026
• Almost - The King of Math Games (Math Games Official Anthem)

  I wouldn't say I completely enjoyed my time at university, if anything, the final year of my degree has been a harrowing experience, to say...

  poetry

  Feb 16, 2026
• An Algebra Puzzle

  There are many ways one can solve this. It all boils down to what sort of techniques you are most comfortable with.

  math

  Feb 16, 2026
• Can You Count Them All?

  So we have a star, a mountain and another shape today. Our job is to carefully count all the triangles in each of them.

  math

  Feb 15, 2026
• Happy Valentine's Day: Can You Maximize The Love On This Day?

  Happy Valentine's Day everyone, I hope you are having a euphoric moment, but if not, you can try this algebra puzzle about maximizing the...

  math

  Feb 14, 2026
• A Geometry Puzzle: What's OC?

  Honestly please share your approach to this one in the comments below because there are at least 7 different ways you can get to the...

  math

  Feb 13, 2026
• What Day Of The Week Is It?

  As a kid, I used to hear stories of child prodigies being able to figure out what day of the week it is say 1000 days from today. In fact...

  math

  Feb 12, 2026
• A Cambridge University Admission Question

  This is question 4 from the Test of Mathematics for University Admission practice paper by the University of Cambridge.

  math

  Feb 11, 2026
• A Full Day

  I had the pleasure of paying a visit to Ryton Pools Country Park located in the south of the outskirts of Coventry.

  humor

  Feb 10, 2026
• Will Homer Simpson Get His Own Seat?

  A line of 100 airline passengers is waiting to board a plane. They each hold a ticket to one of the 100 seats on that flight. For...

  math

  Feb 10, 2026
• Racing To The Bottom

  Imagine there were only two companies A and B in the economy. It's of no pertinence to our discussion whether they are maximizing profit...

  artificial-intelligence

  Feb 09, 2026
• Can You Outsmart Jane Street's Tic Tac Toe Bot?

  I found this nice brain teaser from Jane Street's Puzzles, it's about you playing against an imperfect computer program in a game of tic...

  math

  Feb 08, 2026
• Can You Find All Possible Solutions In Both Cases?

  Apparently a version of this puzzle appeared in 'Nouvelles Annales de Mathématiques'. So we want to arrange the nine digits so that the...

  math

  Feb 06, 2026
• Can You Find The Number Below 400? This question took me less than a minute!

  This math puzzle is about a pyramid made up of consecutive integers starting from 1. So on the first row, we have 1. On the second row, we...

  math

  Feb 05, 2026
• Can You Solve This Oxford University Math Challenge?

  This algebra challenge comes from the 1997 Oxford University's Entrance Exam. And to be honest, any student with a good understanding of...

  math

  Feb 04, 2026
• Can You Solve This Oxford MAT Question from 1997?

  This is honestly one of the best puzzles for students and anyone looking to test their understanding of calculus.

  math

  Feb 03, 2026
• So What's The Most Number of Hats You Can Make?

  You are making clown hats from a circular piece of cardboard. The circumference of the base of each hat equals its slant height, which in...

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  Catriona Agg's Math Puzzle Challenge 13

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• How Many Times Do The Hands Of A Clock Change Places?

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• Are You Smarter Than A 6/7 Year Old?

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• How Many Animals Of Each Kind Did Moses Take Into The Ark?

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• How Quickly Can You Find The Answer Of This Geometry Puzzle?

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  Dec 14, 2025
• Compare Them: A Calculus Approach

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  Dec 07, 2025
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• You Will Read This (Math) Joke In Donald Trump's Voice

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• Mathematics: Methods in Vectors

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  Nov 20, 2025
• Can You Solve This In 6 or 7 Seconds?

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  Nov 19, 2025
• Can You Do This Slanted Revolution Calculus Puzzle?

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• A Difficult Oxford University Math Puzzle: Can You Get It Right?

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• Martin Gardner's Geometry Puzzle

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  Vous pensez que cela n'a aucune importance ?

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• #1 Learning French Through Video Games

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  Aug 06, 2025
• Notes on Statistical Learning

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  Aug 01, 2025
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  Cambridge STEP Exams: A Probability Puzzle

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• Why You Matter

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  Catriona Agg's Math Puzzle Challenge 7

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• Simpson Math Joke: Why Did The Mathematician Name His Dog Cauchy?

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  Jul 27, 2025
• Are You Smart Enough To Solve This Pancake Probability Puzzle?

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  Jul 23, 2025
• I Hate When Lecturers Make Their Notes More Complicated Than Necessary

  Three Versions of the KKT Conditions

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• Hilbert's Hotel

  Derek Goldrei's Classic Set Theory

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  economy

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  Jul 18, 2025
• Tell Me Why Meta Reasoning Works This Time

  Catriona Agg's Math Puzzle Challenge 6

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  Jul 16, 2025
• Most Of You Will Get This Logic Challenge Wrong!

  A subtle clue hidden in plain sight ...

  math

  Jul 14, 2025
• I Solved This Geometry Puzzle In LITERALLY 1 Second!

  Catriona Agg's Math Puzzle Challenge 5

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  Jul 13, 2025
• Cats I Found In Coventry

  Felines in the Garden of Cofa's Tree

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• Catriona Agg's Puzzle 4: How Large Is The Angle?

  Catriona Agg's Math Puzzle Challenge

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  Jul 11, 2025
• Catriona Agg's Puzzle 3: How Much Do The Semicircles Cover?

  Catriona Agg's Math Puzzle Challenge

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  Jul 09, 2025
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  7 + 1 Math Jokes and Memes Explained

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  Jul 08, 2025
• Catriona Agg's Puzzle 2: What's The Area of The Circle?

  Catriona Agg's Math Puzzle Challenge

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  Catriona Agg's Math Puzzle Challenge

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  Jul 07, 2025
• Math Games: The Catriona Agg Geometry Compendium

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  Jul 06, 2025
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• I Bet Keir Starmer CANNOT Do This Math Puzzle for £200k!

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• You Can Make 200K A Year Working For The British Government If You Can Solve This Math Puzzle!

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• The Dead Humanity Theory

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• A Big Number Puzzle

  Do You Know How To Do This?

  math

  Mar 13, 2024
• Can You Pass This Apple-Orange Interview At Apple 🍎?

  The iPhone Company's Interview Question

  writing

  Mar 13, 2024
• Mathematics & Calculus

  Time For Another Calculus Puzzle

  math

  Mar 12, 2024
• Can You Count Them All?

  A Math Puzzle of Colorful Rectangles

  math

  Mar 12, 2024
• Can You Rearrange And Count Them?

  3 must be blue, 2 red and 1 green 🔵🔴🟢

  writing

  math

  comics

  Mar 11, 2024
• How Long Is The Line?

  A Fun Geometry Puzzle 🏮

  writing

  Mar 11, 2024
• A Not Too Hard Algebra Puzzle

  Just some high school math you know :)

  math

  Mar 10, 2024
• Are You Clever Enough To Ace This?

  A Math Puzzle: 3 Circles within A Circle 🤹‍♀️

  math

  Mar 10, 2024
• Can You Find The Hundreds Digit of This Big Number?

  A Challenging Math Puzzle

  math

  Mar 09, 2024
• How Would You Solve This Math Puzzle?

  A test of your algebra skills 📑

  math

  Mar 09, 2024
• A Light-hearted Math Puzzle: h 💗 (h 💗 h) = ?

  Anyone can do it 🐰

  math

  Mar 08, 2024
• How Long Are All The Rings?

  An Algebra Problem With Many Rings 💍

  math

  Mar 08, 2024
• A Fun Geometry Puzzle 🍎

  Are You Smart Enough To Do It?

  math

  Mar 07, 2024
• What Is The Folium of Descartes?

  The area of the loop and the area between the wings and the asymptote have the same area 🌸

  math

  Mar 06, 2024
• Can You Pick The Real Coins?

  A Probability Puzzle of Counterfeit Coins 💰

  math

  Mar 05, 2024
• Can You Add The Sum Of 3 Lines?

  A Star-shaped Geometry Puzzle 🌟

  math

  Mar 05, 2024
• How Fast Do You Walk Around The Track?

  A Fun Algebra Puzzle

  math

  Mar 04, 2024
• Can You Count The Correct Number Of Toothpicks?

  An Elementary Counting Problem 🦷

  math

  Mar 03, 2024
• How To Find The Area of The Triangle?

  A Sunflower Geometry Problem 🌻

  math

  Mar 03, 2024
• How To Find The Infinite Sum?

  A beautiful solution

  math

  Mar 02, 2024
• How Many Ways To Put The Candies?

  A Counting Problem 🍬

  math

  Mar 02, 2024
• High School Alege

  Where Is The Circle Positioned?

  math

  Mar 01, 2024
• How To Find The Area of The Semi-Circle? 🍉

  A Fun Geometry Puzzle

  math

  Mar 01, 2024
• Can You Solve This In 5 Seconds?

  A very simple problem that you should know 💙

  math

  Feb 29, 2024
• What's The Integer Part?

  A Nested Radical Problem

  math

  Feb 29, 2024
• A Geometry Puzzle with Two Concentric Circles ⭕🟡

  How would you do it?

  math

  Feb 28, 2024
• A Probability Puzzle: Finding 1000P

  A game of chess ♟

  math

  Feb 28, 2024
• Beautiful Mathematics: Proofs Without Words

  Mathematics is a vast and ever expanding subject. It's got numbers, symbols, formulas, proofs and diagrams. As one advances to higher...

  math

  Feb 27, 2024
• Can You Find P + Q + R?

  A Cryptarithmetic Puzzle

  math

  Feb 27, 2024
• How Many Ways Can You Slice A Donut?

  The intriguing math of Spiric Sections

  math

  Feb 26, 2024
• Are You Clever Enough To Get Into Oxford University?

  An Oxford MAT challenge

  math

  Feb 26, 2024
• How Long Is The Curve of the Shell? 🐌

  An engaging and interesting math problem

  math

  Feb 25, 2024
• Can You Find The Area of The Hexagon?

  A simple and fun geometry puzzle

  math

  Feb 24, 2024
• A Calculus Challenge from Oxford University

  Symmetry is your friend 🦋

  math

  Feb 24, 2024
• Do You Know How To Solve This?

  A functional equation math puzzle

  math

  Feb 23, 2024
• A Handshake Problem with 2016 Guests 🙌

  How many hands did the 2016th participant shake?

  math

  Feb 23, 2024
• A 7-Circle Geometry Problem 🃏

  The centers of the seven circles shown all lie on the same line. The four smaller circles have a radius of 1 cm.

  math

  Feb 22, 2024
• Can You Count The Number of Triangles?

  Not including the party banners 🎉🎈

  math

  Feb 22, 2024
• How To Mathematically Share A Pizza with 3 People?

  Integral Calculus: 2 Parallel Cuts

  math

  Feb 21, 2024
• Can You Get Into Cambridge University? 🍕

  Assuming the angles can take any values of 1, 2, ... ,360 degrees

  math

  Feb 21, 2024
• Can You Find The Area of The Hexagon? 🍯

  A honeycomb within an orange 🍊

  writing

  Feb 20, 2024
• Can You Find The Probability?

  An Oxford MAT Problem from 2003

  math

  Feb 20, 2024
• A Fun Cambridge Admission Math Problem 🐦

  A general integral

  math

  Feb 19, 2024
• A Cambridge University Math Problem: What is u_(1000)?

  Patterns and Proof

  math

  Feb 19, 2024
• Can You Find The Correct Answer?

  A very long product

  math

  Feb 15, 2024
• An Oxford University Math Problem

  Oxford MAT 2020: Integral Calculus

  math

  Feb 15, 2024
• A Valentine's Day Math Problem 💖

  Happy Valentine's Day: How Big Is Your Heart?

  math

  Feb 14, 2024
• A Simple and Fun Geometry Problem

  draw a diagram! 🎨

  math

  Feb 13, 2024
• A Delightful Oxford University Math Question That You Can Solve

  A math puzzle a day keeps the brain in play 🧠

  math

  Feb 13, 2024
• A Sangaku-like Puzzle from Japan 🗾

  a sangaku has many circles; a sangaku-like puzzle has other shapes

  math

  Feb 12, 2024
• How To Win Rock Paper Scissors with Math? 🎲

  Scissors beat paper, paper covers rock, rock blunts scissors

  math

  Feb 11, 2024
• How Do You Find x?

  when there are infinitely many of them ...

  math

  Feb 09, 2024
• Are You Smart Enough For A Math Degree at Oxford University?

  A math problem with a simple solution!

  math

  Feb 09, 2024
• A Fun Combinatorics Problem

  Using the stars and bars theorem ⭐

  math

  Feb 08, 2024
• Welcome to High School Calculus

  Starting a math publication for high school students

  math

  Feb 08, 2024
• A Japanese Math Problem at the Isaniwa Shrine from 1937 🏯

  Do you understand the characters?

  math

  Feb 08, 2024
• A Japanese Sangaku Problem at the Tokuraji Temple 🎌

  More circles within circles

  math

  Feb 07, 2024
• Can You Solve This Japanese Sangaku Problem? 🍙

  Circles within circles

  math

  Feb 06, 2024
• Here's How to Find the Logarithm of Any Number With a Piece of String 🧵

  Catenary: Latin for a hanging chain

  math

  Feb 04, 2024
• How Much Do The 6 Triangles Cover The Hexagon?

  A Very Cool And Easy Geometry Problem

  math

  Feb 04, 2024
• 7 Really Cool Match Puzzles 🔥You Must Try

  #1 Move 3 matches and turn around the fish🐟

  math

  Feb 03, 2024
• A Very Strange Looking Integral: 2024! (Factorial)

  How would you solve it?

  math

  Feb 03, 2024
• Are You Smart Enough To Find The Radius?

  A Fun Geometry Challenge

  math

  Feb 03, 2024
• Can You Get Into Cambridge University?

  A Calculus Problem

  math

  Feb 02, 2024
• What Are Shadows Made Of?

  It's just the absence of photons, not some evil demon :)

  poetry

  space

  science

  Feb 02, 2024
• Can You Find What M Is?

  An Interesting Calculus Problem

  math

  Jan 31, 2024
• Can You Solve This Viral Prisoner Hat Puzzle? 🔴🔵

  All four prisoners will be freed if at least one of them correctly guesses the color of the hat on his head. The question is, how?

  math

  Jan 31, 2024
• An Integral With Respect to dx²? How?

  An insightful calculus problem

  math

  Jan 31, 2024