Barry Leung, KoMG

• There's ACTUALLY A Way To Simplify This

  Let me show you how

  math

  Nov 11, 2026
• I Went To The Midland Air Museum Today

  Did you know that Sir Frank Whittle - an English engineer, inventor and Royal Air Force (RAF) air officer, and above all the father of...

  travel

  history

  Nov 10, 2026
• Can YOU Pick The Right Graph: An Oxford University Challenge

  Our maths YouTube channel is sitting at 376 subscribers and 545 watch hours. I have been posting a maths puzzle video every day so if you'd...

  math

  Nov 10, 2026
• An Intriguing Probability Puzzle From The University Of Oxford

  Alice and Bob each toss five fair coins (each coin lands on either heads or tails, with equal probability and with each outcome independent...

  math

  Nov 09, 2026
• Can YOU Solve This Infinite Nested Imaginary Number?

  Find The Expression!

  math

  Nov 08, 2026
• 7 Light Hearted Puzzles From The Mind Boggling Pocket Puzzles Book I Found From The Vintage Book...

  Frustrating Puzzles With Everyday Objects

  math

  Nov 07, 2026
• Can You Solve This Geometry Challenge From Oxford University?

  In this entry, we will solve the above problem from the Oxford MAT 2016.

  math

  Nov 06, 2026
• Can You Find The Shaded Area?

  It's not a badge of honour to spend the bulk of your waking hours staring into a screen doing any sort of 'work'. In the context of...

  writing

  math

  Nov 05, 2026
• Did You Know That Circles Are Not 2D But 1D?

  To understand why, we must start with the humble string

  math

  Nov 04, 2026
• Are You Smarter Than A Clever 16-Year Old?

  Pay attention to the title. I asked if you are smarter than a clever 16-year old, meaning I don't believe the average 16 year-old can solve...

  math

  Nov 03, 2026
• We Did This Together In Class: Now It's YOUR Turn

  I have been teaching maths 4 hours a week to groups of GCSEs students in Coventry. So far I have done 13 hours.

  math

  Nov 02, 2026
• Wait, Did Homer Just Find A Solution To Fermat's Last Theorem?

  I have discovered a truly marvellous proof of this which this margin is too narrow to contain

  math

  Nov 01, 2026
• Are YOU Clever Enough To Solve This Viral Geometry Puzzle From USA?

  In fact you can probably solve it in a matter of seconds

  math

  Oct 31, 2026
• Can You Find The Probability That The Product Is Even?

  This is the thumbnail I made for my YouTube video today.

  math

  Oct 30, 2026
• Ben Orlin's Book Has Some Cool Integrals: How Many Of Them Can You Solve?

  Change is the Only Constant

  math

  Oct 29, 2026
• How Big Is The Trapezium? In 2 Minutes!

  You gotta use the big old Pythagoras again and again for this

  math

  Oct 28, 2026
• Are You Smart Enough To Find The Area? 🇯🇵🍣

  A Japanese Geometry Problem

  math

  Oct 27, 2026
• England's Tantalizing Puzzle From The 1960s: How Would YOU Put These 4 Cubes The Right Way?

  Can you place the 4 cubes together in a row in such a way that 4 different colours show in any order on each side?

  math

  Oct 27, 2026
• So Can YOU Find All The Xs?

  The numbers 2, 3, 4, 5, 6, 7 and 8 are to be placed in the empty circles so that (i) there is one number in each circle, and (ii) the sum...

  math

  Oct 26, 2026
• Let Me Show You How To Build A Sphere With Triple Integrals!

  I am sure most of you know a bit or two about circles and spheres. You know V = 4/3πr³. Here's a fun fact tangentially related to this...

  math

  Oct 25, 2026
• Do NOT Try To Use A Calculator For This! 🚫

  Hey you, please subscribe to our YouTube channel.

  math

  Oct 24, 2026
• Here's An Elegant Proof of The Irrationality of √2 You Have Never Seen

  Proof by Infinite Descent

  math

  Oct 24, 2026
• How Would You Find The Area Of The Octagon?

  The diagram shows a regular octagon and a square formed by drawing four diagonals of the octagon.

  math

  Oct 23, 2026
• 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

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• How Would YOU Evaluate This INFINITE Series From Cambridge University?

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• A 300-Year-Old Geometry Puzzle Finally Has an Answer

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• The Art and Science Of Maths Communication

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• The Rubik's Cube Is a Tiny Philosophy Machine

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

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• A Spacecraft Problem: Can You Solve It?

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• The World Does Not Play by Your Rules

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• Can You Separate 66 Coins?

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• You Can't Win This Game

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• A Mathematical Calendar Puzzle

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• A Brief History Of Calculus

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• What P = NP Would Actually Mean

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• Which One Is The Correct Choice?

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• Calculate The Whole Perimeter!

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• What Is The Radius Of The Circle?

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• How Big Is The Red Area?

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• Can You Find The 28th Coefficient?

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• Bagot's Castle in Baginton & Bridge View Light Railway

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• How Would You Find The Radius?

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• Are You More Clever Than A 8 Year-Old?

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• We Need To Start Planting Female Trees

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• The Monster Group: The Largest Symmetry Nobody Expected

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• It's Time To Take YouTube Seriously

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• The Fibonacci Sequence Is Hiding Inside 1/89

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• Do NOT Solve This With Calculus!

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• Life Is The Best Video Game There Is

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• What If the Universe Has No Edge and No Centre?

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• Slave To The Algorithm

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• Cavalieri's Principle: Calculus of the Ancient Times

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• Apparently Researchers Are Astonished That AI Cracked An 80-year-old Mathematics Challenge

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

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• What's The Height In The Middle?

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

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

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

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• To Make A Living Is To Find Food

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• 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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• So That's Why 6 Was Afraid Of 7

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• So How Big Is The Biggest Prime Number?

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• Why Doesn't The Integral Equal Zero?

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• Are You Smarter Than A 3rd Grader? 3rd Grade Homework Troll Triangles

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• Can You Solve This Volume Of Revolution Question?

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

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• Mathematicians Finally Crack The Famous 'Moving Sofa Problem'

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• Can You Crack This Difficult Geometry Doughnut?

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

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• What's The 2008th Term?

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• No Child Actually Likes Studying Mathematics

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• Are You Smarter Than Oxford Students?

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• Can You Do This Cryptogram Puzzle?

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• Maths Graduates Aren't Special

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• 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?

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

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• A Bike Accident Ruined My Laptop :(

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  Apr 27, 2026
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  Apr 26, 2026
• What is the product of all positive odd integers less than 10000?

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

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

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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?

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

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  Apr 21, 2026
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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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• 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)

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

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

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

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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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  Apr 12, 2026
• What Is Permutation and Combination?

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  Apr 10, 2026
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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.

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

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

  Our Substack newsletter is rising!

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

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  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.

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  Apr 06, 2026
• Subscribe To Math Games on Substack

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

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

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• Can You Fry An Egg To Solve This Math Puzzle?

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

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  Apr 02, 2026
• A Geometry Puzzle About A String

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

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

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

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  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...

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

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

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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?

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  Mar 28, 2026
• Can You Help The Fox?

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  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.

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

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  Mar 26, 2026
• Try This Running Math Puzzle!

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  Mar 26, 2026
• Can You Find The Probability?

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

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

  A Calculus Challenge From 1991

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

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  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.

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  Mar 21, 2026
• A Fly & Spider Math Puzzle

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

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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!

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

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

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• Apparently There's A Math Problem In America

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

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  Mar 11, 2026
• English Was My Favorite Class

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• There's A Mistake in Math Genius Mary Adler's Calculus Problem

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

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  Mar 05, 2026
• Sheep

  Dorothy Wellesley

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

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

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

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• 4 Math Puzzles About Age

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  Apr 06, 2024
• Can You Pass Oxford University's Math Test?

  An Oxford MAT Question: The Maximum Value

  math

  Apr 05, 2024
• What's a That Satisfies This Log Equation?

  A Problem In The Forest 🌴

  math

  Apr 04, 2024
• What Is The Area of The Shaded Region of This 8 By 5 Rectangle?

  A Geometry Puzzle: Rays of Blue and Red

  writing

  math

  Apr 03, 2024
• What Is The Value Of C So That The Red Region = Blue Region?

  A High School Calculus Puzzle 🔴🔵

  math

  Apr 02, 2024
• How Long Is The Line Connecting The Two Circles?

  They kinda look like planets 🪐

  math

  Apr 01, 2024
• Can You Find The Sum Of All 3 Circles?

  A Fun Geometry Problem 🔴🟡🔵

  math

  Apr 01, 2024
• Can You Solve This Cambridge Math Puzzle?

  Happy Easter Everyone!

  math

  Mar 31, 2024
• A Very Tricky Quadratic Equation

  What to do if we have an absolute sign?

  math

  Mar 30, 2024
• A Red Region Eclipsed By Semi-circles

  Can You Crack This Geometry Puzzle?

  math

  Mar 29, 2024
• How Would You Find a?

  An Algebra Puzzle

  math

  Mar 29, 2024
• A New Operation Puzzle 🌟

  Can You Find The Answer? The Order Matters!

  math

  Mar 28, 2024
• A Classic Integration By Parts Challenge

  The Integral of e^x sinx

  math

  Mar 27, 2024
• Can You Find The Area Of The Fin?

  A Shark Geometry Problem 🦈

  math

  Mar 27, 2024
• Can You Find The Tens Digit Of This Big Sum Under 1 Minute?

  A Sum of Factorials: A Fun Puzzle

  math

  Mar 26, 2024
• How Would You Find The Angle?

  Butterfly Shaped Puzzle 🦋: Thank you to 10k of you all!

  math

  Mar 25, 2024
• How Many Pages Are In The Book?

  A Math Puzzle: Backwards Deduction

  writing

  Mar 24, 2024
• Can You Solve This Linear Function Puzzle?

  A Simple Math Challenge 🍄

  math

  Mar 23, 2024
• Do You Know How To Do This Geometry Puzzle?

  4 circles inscribed in a bigger circle

  poetry

  math

  Mar 23, 2024
• This Is What Oxford University Asks Students

  An Oxford MAT Question: The Biggest Integral

  math

  Mar 22, 2024
• Can You Find The Remainder?

  The Remainder of A Big Number

  math

  Mar 21, 2024
• An Ant Math Puzzle: Climbing Up The Cubes 🐜

  Can You Find Out How Far Its Journey Is?

  math

  Mar 21, 2024
• A Double Summation Math Puzzle

  How Would You Do It?

  math

  Mar 19, 2024
• What's The Answer To That Many Logarithms?

  An Algebra Puzzle

  math

  Mar 19, 2024
• A Very Mathematical Clock

  12 Expressions and 12 Answers: Can You Evaluate Them All?

  math

  Mar 18, 2024
• A Fun Geometry Problem

  3 Circles and more!

  math

  Mar 18, 2024
• Can You Evaluate This Expression?

  A Fun Algebra Puzzle

  math

  Mar 17, 2024
• What's The Bond Angle In Methane?

  Selena Routley suggested this problem 🧪

  math

  Mar 17, 2024
• What's The Correct Percentage?

  A Math Puzzle: Percentages

  math

  Mar 17, 2024
• Can You Find The Largest Value?

  A very basic and simple math puzzle

  math

  Mar 17, 2024
• How Many Times Was The Coin Tossed?

  A Math Puzzle in Probability

  math

  Mar 16, 2024
• Are You Smart Enough To Find The Area?

  An Interesting Geometry Puzzle

  math

  Mar 15, 2024
• Happy Pi Day 🎂: Are You Smart Enough To Solve This?

  Is it π or pie? Or both!?

  math

  Mar 14, 2024
• 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