Barry Leung, CoMN, KoMG, ARM

• How Would You Find The Radius?

  A Fun Geometry Challenge

  math

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

  math

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

  It's pollen season and oh boy for the past few days my nostrils have been flaring up so severely. My sleep hasn't been the best and I have...

  science

  climate-change

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

  Mathematics has many ways of making ordinary language fail.

  math

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

  The Wacom One budget tablet arrived today through eBay. I was out and about with my friend, but thankfully, my housemate helped collect the...

  math

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

  Some mathematical facts feel inevitable.

  math

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

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

  math

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

  I like using Apple Maps because it feels like I am the main character in one of those MMORPG saga video games exploring the world around...

  travel

  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

  science

  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.

  math

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

  Before the Giants of Newton and Leibniz

  math

  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

  math

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

  What's the dog's height?

  math

  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

  math

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

  We all have to make a living to survive.

  self

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

  A Mathematical Milestone

  math

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

  Sangaku Challenge

  math

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

  It's not because 7 ate 9 🙅🙀🚫, or is it?

  math

  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

  math

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

  An interesting paradox in mathematics and calculus

  math

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

  Hmm notice how the answer choices are 5, 8 and 9

  math

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

  Don't forget to repost this problem!

  math

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

  This is A mathematically delicious mystery

  math

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

  What's the largest couch that can turn a corner? 🛋️

  math

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

  The two circles have the same centre. What's the shaded area?

  math

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

  A Challenge On Functions

  math

  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...

  math

  May 07, 2026
• No Child Actually Likes Studying Mathematics

  No one does, really

  math

  education

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

  The beauty of mathematics sometimes lies in its simplicity, in that a seemingly complex problem can be broken down if we stick to the...

  math

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

  This cryptogram puzzle has more than one possible solution.

  cryptocurrency

  cybersecurity

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

  Life should be about exploring all that's around us with unmitigated curiosity. Sadly modern life has stripped us of our adventurous...

  math

  May 02, 2026
• Maths Graduates Aren't Special

  And maths degrees aren't that useful

  math

  education

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

  This exciting math challenge comes from the University of Oxford. If you can solve this with ease, perhaps you are good enough to study...

  math

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

  Ok apparently some 23 year-old solved one of the Erdős Problems with ChatGPT, I am going to take a look at that tomorrow and write up a...

  math

  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?

  A bug travels from A to B along the segments in the hexagonal lattice pictured below. The segments marked with an arrow can be traveled...

  math

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

  Today started off ok, until I unfortunately rode a faulty LIME bike with a flat tyre.

  math

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

  Try multiple 1 by 1.1 and then by 0.9, what do you get?

  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...

  math

  Apr 24, 2026
• Coventry Can Be Beautiful

  I have lived in Coventry in the United Kingdom for almost 4 years now. And in the blink of an eye, I have graduated and been working my...

  travel

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

  artificial-intelligence

  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

  I don't know much about trading, but I did find this puzzle from a Quant trading interview prep website.

  math

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

  Emily cuts 2026 circles into a sheet of paper. She colours one circle black, then separates the fragments. Can every black piece ever be...

  math

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

  Revisiting the shape you can fill with paint, but never paint

  math

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

  I started reading the book Inheritocracy: It's Time to Talk About the Bank of Mum and Dad by Eliza Filby today. Before that I came across...

  social-media

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

  Six Seven is always funny, I guess. If you think about percent, it just means per 100. Mathematically that's just division by 100, or...

  math

  Apr 16, 2026
• Can You Find P + Q?

  I remember learning about the binary operation in my first year algebra course at university. It is a rule or function that combines two...

  math

  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

  math

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

  To the untrained eye, it might be difficult to ascertain if an article on Medium and any website is AI-generated or not. But as someone who...

  artificial-intelligence

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

  A Basketball Match

  math

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

  A diagonal is a line segment connecting two non-adjacent vertices of a polygon. It cannot be a side of the polygon itself.

  math

  Apr 12, 2026
• What Is Permutation and Combination?

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

  math

  Apr 10, 2026
• I Like Going To The Cemeteries

  I relish strolling through cemeteries from time to time, for it liberates the soul to know that no matter what becomes of us, we will...

  spirituality

  philosophy

  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

  math

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

  I graduated 6 months ago, and have been working remotely for a venture studio based in Singapore. I went on my first ever business trip for...

  self

  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

  In 1990, Donald Trump stood at the opening of the Trump Taj Mahal in Atlantic City, calling it "the eighth wonder of the world." By 2009...

  economy

  politics

  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

  Imagine a world split cleanly in two. Every creature you meet is either a Vampire or a Werewolf, and each species has a peculiar...

  math

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

  So I have been thinking of how to expand the current Math Games brand beyond just Medium. So far I have been successful at launching my...

  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...

  math

  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

  pets

  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
• We Have Launched The Official Math Games Website

  Thank you to Medium and each and every one of you

  math

  Feb 05, 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...

  math

  Feb 02, 2026
• Which One Is The Smallest?

  In school, we learn that a surd is an expression containing an irrational root, such as √11, √2, √5. They are used to irrational numbers...

  math

  Feb 01, 2026
• Can You Find The Total Length Of The Border Of The Cyan Design?

  The shaded figure is formed by eight circular arcs of equal radius. Four arcs are centered at the vertices of a square, and the other four...

  math

  Jan 31, 2026
• These 100 Prisoners Are Wearing Hats Of 10 Different Colors: Can You Help Them Escape?

  One hundred prisoners are marched into a long line and each is fitted with a hat, chosen at random from 10 distinct and easily recognizable...

  math

  Jan 30, 2026
• Can You Solve This Viral Cryptogram Puzzle?

  What's A + B + C?

  cybersecurity

  Jan 29, 2026
• On Unemployment, Credentialism and the Abstraction Economy

  And their consequences on society and our lives

  education

  work

  Jan 28, 2026
• How Many Joins Are On The Football?

  A Math Puzzle! Let's do it together! Oh and I have launched the 1st ever Mathematical Escape Room :)

  math

  Jan 27, 2026
• Oxford University Asks You A Tough Question: Where Is The Prize?

  A prize is placed under 1 of these 5 objects. Bella is told the shape of the object and Barry is told the color of the object.

  math

  Jan 26, 2026
• Are You Good Enough To Do This In 6 or 7 Seconds?

  A rectangle with sides 3cm and 14 cm have some colored triangles

  math

  Jan 26, 2026
• On The Balance of Probabilities

  We know that they are lying, they know that they are lying, they even know that we know they are lying, we also know that they know we know...

  politics

  justice

  Jan 25, 2026
• Your Wife Will Find Out That YOU Are A Cheater!

  A Math Puzzle

  math

  Jan 25, 2026
• The Darkest Hours Always Forge The Brightest Flames

  Please read this to the end if you are one of my readers, I really mean it, thank you

  education

  equality

  Jan 24, 2026
• How Would You Rewrite The Expression?

  A Math Challenge! Let's try it together!

  math

  Jan 23, 2026
• Did It ACTUALLY Snow? A Math Puzzle

  A father claims about snowfall last night. First daughter tells that the probability of snowfall on a particular night is 1/8. Second...

  math

  Jan 22, 2026
• The SIMPLEST Explanation To The Monty Hall Problem

  Explained by your friendly casual mathematician

  math

  Jan 21, 2026
• Who Is More Likely To Win?

  A & B are alternately picking balls from a bag without replacement. The bag has k black balls and 1 red ball. Winner is the one who picks...

  math

  Jan 20, 2026
• Can You Help Free The Prisoners? 🎩🎩🎩🎩

  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 19, 2026
• What's The Perimeter In The Middle?

  Have you heard of the Dorian Gray effect? Apparently our names, our personalities and even many subconscious internal factors affect how...

  math

  Jan 17, 2026
• Are You Smart Enough To Find The Shaded Area?

  Catriona Agg's Math Puzzle Challenge 13

  math

  Jan 16, 2026
• Can YOU Find The Angle? This One Actually Challenged Me!

  Catriona Agg's Math Puzzle Challenge 12

  math

  Jan 15, 2026
• How Many Of These 6 Simpson Math Jokes And Puns Do YOU Understand?

  math

  Jan 14, 2026
• Can You Solve The Mystery? What Did I Paint On The Die?

  I bought two fair six-sided dice. Keeping the first one untouched, I modified the second die, by erasing each face and writing a number of...

  math

  Jan 13, 2026
• What Fraction Of The Large Circle Is Shaded?

  Catriona Agg's Math Puzzle Challenge 11

  math

  Jan 12, 2026
• PLEASE Be Careful With These 7 Trick Questions!

  Some are tricky, but some are painfully obvious :)

  math

  Jan 10, 2026
• Can You Tell Me If The Wind Changes The Time?

  math

  Jan 09, 2026
• What's The Ratio Of Yellow To Green In This Design?

  Catriona Agg's Math Challenge 10

  math

  Jan 08, 2026
• I Always Come Back To This Video When Life Gets Chaotic

  Pursuit of Wonder: A Reason To Stop Worrying

  self

  Jan 07, 2026
• Are You Clever Enough To Find The Total Shaded Area of 4 Squares?

  Catriona Agg's Math Puzzle Challenge 9

  math

  Jan 07, 2026
• Can You Separate These Cats Using Only 3 Circles?

  A Light Hearted Logic Puzzle Before Bed 🛏️ | Henry Dudeney's Book

  humor

  Jan 06, 2026
• The Square Has Area 16: What's The Area Of The Blue Region?

  This is a square with an area of 16. The interesting property is that two vertices are connected to the midpoints of the square. And the...

  math

  Jan 05, 2026
• How Many Times Do The Hands Of A Clock Change Places?

  A Math Challenge from Henry Dudeney's Book

  math

  Jan 05, 2026
• Are You Smarter Than A 6/7 Year Old?

  A Geometry Puzzle

  math

  Jan 04, 2026
• I Drew This Math Puzzle On The Snow! Can You Find The Sum Of # A

  I was pleasantly surprised when I woke up today. As I walked to the backyard, a sensation of chilliness drifted upon me, followed by the...

  math

  Jan 03, 2026
• Mathematical Properties of 2026

  Happy New Year!

  math

  Jan 02, 2026
• You Can Only Use The Scale Once!

  I think the solution is quite creative

  math

  Jan 01, 2026
• How Many Animals Of Each Kind Did Moses Take Into The Ark?

  2 or ...?

  spirituality

  philosophy

  Jan 01, 2026
• Are You Smart Enough To Solve This Oxford University Math Puzzle?

  2023 Oxford Mathematics Admission Test

  math

  Dec 31, 2025
• The Game of Life

  A Diary

  gaming

  Dec 27, 2025
• Endless Triangles?

  A Geometric Series Challenge

  math

  Dec 26, 2025
• Endless Hexagons?

  A Geometric Series Challenge

  math

  Dec 25, 2025
• Can You Solve This Japanese Geometry Problem?

  Sangaku Challenge

  math

  Dec 24, 2025
• An Alternate Way of Integration

  A Geometric Approach

  math

  Dec 23, 2025
• A Graphical Approach & Exploration

  Can You Solve This Algebra Challenge?

  math

  Dec 22, 2025
• What's the ratio of the shaded square?

  Can you find all two methods?

  math

  Dec 21, 2025
• How Quickly Can You Find The Answer Of This Geometry Puzzle?

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• Can You Solve Blue Eyes: The Hardest Logic Puzzle in the World??

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• #1 Learning French Through Video Games

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  Catriona Agg's Math Puzzle Challenge 7

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  Catriona Agg's Math Puzzle Challenge 6

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

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  Catriona Agg's Math Puzzle Challenge 5

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

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

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  Jul 03, 2025
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  Jul 02, 2025
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  Jul 01, 2025
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• The Dead Humanity Theory

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• Can You Work Out These 4 Math Questions While Running A 42.2 km Marathon?

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  Jun 23, 2025
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  Jun 19, 2025
• Can You Find The Shaded Area?

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  Jun 18, 2025
• A Truly Complex Equation

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  Jun 16, 2025
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  Jun 15, 2025
• Donald Trump and His Children Cannot Multiply 17 by 6?

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  Jun 13, 2025
• How Many Pairs Of Vertices Can You Draw?

  A Challenging Math Puzzle

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  Jun 12, 2025
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  Jun 07, 2025
• My Dad Is an Engineer but He Doesn't Know How to Integrate By Parts

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  Jun 05, 2025
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  Questions from Harvard's Introductory Calculus Course

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  Jun 02, 2025
• A Foury Series & A Fourier Series

  HMMT November 2022

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  May 30, 2025
• The 1st Ever Annual Harvard-MIT November Tournament

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  May 29, 2025
• A Typical Farm Day in Banbury, Oxfordshire

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  May 25, 2025
• A 2025 MIT Integration Bee Problem

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  May 16, 2025
• A Spontaneous Math Puzzle On The Farm

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  May 13, 2025
• I Solved This British Math Puzzle While Working At A Farm In Oxfordshire

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  May 11, 2025
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  May 09, 2025
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  May 08, 2025
• How To Find Partial Derivatives?

  Multivariable Calculus

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  May 07, 2025
• Can You Solve This Soviet Math Equation?

  This was sent to me by a friend from Russia

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  May 06, 2025
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• Math Puzzle: A Golden Ratio Of Brick Walls

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  May 04, 2025
• Set Theory Notes — Chapter 1

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  May 04, 2025
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• A Mathematical Puzzle With NO Calculator

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  Apr 30, 2025
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  A Challenging Math Puzzle

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  Apr 25, 2025
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  A Math Problem In Graphs

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  Apr 25, 2025
• I Saw This Math Puzzle At A Chinese Restaurant In Prague

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  Apr 23, 2025
• Which Two Could Be The Sketch?

  An Oxford MAT Problem

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  Apr 20, 2025
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  Apr 19, 2025
• A 2017 Cambridge University Algebra Challenge

  Cambridge STEP Exams

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  Apr 18, 2025
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  Apr 17, 2025
• An Oxford Cake Cutting Math Problem

  The Oxford MAT Exam

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  Apr 15, 2025
• Can You Figure Out This Two Identical Black Boxes Puzzle From Oxford University?

  An Oxford MAT Exam

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  Apr 14, 2025
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  An Oxford MAT Puzzle

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  Apr 13, 2025
• The House Always Wins, But We Still Go

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  🎯 Math Games | Puzzle 12 | 3/8/2024

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  🎯 Math Games | Puzzle 11 | 29/7/2024

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• Can You Solve This Oxford University Geometry Puzzle?

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• Carnivore, Replicators, Biological Imperative

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  🎯 Math Games | Solution 3 | 27/5/2024

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  May 26, 2024
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  May 22, 2024
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  May 14, 2024
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  May 09, 2024
• Can You Solve This Integral From Cambridge University?

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  May 09, 2024
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  May 08, 2024
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• Welcome To The Weekly Math Games

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  May 07, 2024
• What Is The Value Of Y?

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  May 06, 2024
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• Can You Solve Two Quadratic Equations?

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  May 05, 2024
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• To Get Married Or To Not Get Married?

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• A Not So Easy Geometry Challenge

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  Apr 29, 2024
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  Apr 28, 2024
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  Apr 26, 2024
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  Apr 22, 2024
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  Apr 20, 2024
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  Apr 20, 2024
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  Apr 19, 2024
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  Apr 19, 2024
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• An Elegant Proof of the Irrationality of √2

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  Apr 14, 2024
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  Apr 09, 2024
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  Apr 08, 2024
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  Apr 05, 2024
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  Apr 04, 2024
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  Happy Easter Everyone!

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  Mar 30, 2024
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  Mar 29, 2024
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  Mar 29, 2024
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  Mar 28, 2024
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  Mar 27, 2024
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  Mar 22, 2024
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  Mar 21, 2024
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  Mar 19, 2024
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  Mar 19, 2024
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  Mar 18, 2024
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  Mar 17, 2024
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  Mar 17, 2024
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  Mar 16, 2024
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  Mar 15, 2024
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  Mar 14, 2024
• A Big Number Puzzle

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

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  Mar 13, 2024
• Mathematics & Calculus

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  Mar 12, 2024
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  Mar 12, 2024
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  Mar 11, 2024
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  Mar 11, 2024
• A Not Too Hard Algebra Puzzle

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  Mar 10, 2024
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  Mar 10, 2024
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  A Challenging Math Puzzle

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

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

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

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  Mar 08, 2024
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  Mar 07, 2024
• What Is The Folium of Descartes?

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  math

  Mar 06, 2024
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  Mar 05, 2024
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  A Star-shaped Geometry Puzzle 🌟

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

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  Mar 04, 2024
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  Mar 03, 2024
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  A Sunflower Geometry Problem 🌻

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

  A beautiful solution

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  Mar 02, 2024
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  Mar 02, 2024
• High School Alege

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

  A Fun Geometry Puzzle

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  Mar 01, 2024
• What's The Integer Part?

  A Nested Radical Problem

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  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

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  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 🃏

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  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

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

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

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  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

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

  A general integral

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

  Patterns and Proof

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  Feb 19, 2024
• Can You Solve Aristotle's Wheel Paradox? 🎡

  Click that play button on the GIF I found from @InertialObservr on Twitter!

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  Feb 16, 2024
• Can You Find The Correct Answer?

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  Feb 15, 2024
• An Oxford University Math Problem

  Oxford MAT 2020: Integral Calculus

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

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

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  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 🗾

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

  Scissors beat paper, paper covers rock, rock blunts scissors

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  Feb 11, 2024
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  Feb 09, 2024
• A Fun Combinatorics Problem

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  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
• An Integral With Respect to dx²? How?

  An insightful calculus problem

  math

  Jan 31, 2024
• (2 + 3) + 4 = 9, what about (2*3)*4? ✨

  A Simple Math Puzzle Anyone Can Solve!

  math

  Jan 30, 2024
• 'Probably The Hardest Geometry Equation In The World'

  Max Fischer daydreaming in Rushmore Academy

  math

  Jan 30, 2024
• What Is the Angle at 07:12? ⏰

  Between the minute hand and the hour hand

  math

  Jan 29, 2024
• Mathematical Paradox in the Simpsons: 1–1/2 + 1/3–1/4 + . . . = 0

  Professor at the more famous MIT made a mistake!

  math

  Jan 29, 2024
• A Function Challenge

  Are You Smart Enough To Do It?

  math

  Jan 28, 2024
• Do You Understand This Math Joke?

  Math in Homer Simpson 🥧

  math

  Jan 27, 2024
• Squashing A Rhombus

  Beautiful Geometry

  math

  Jan 27, 2024
• How Far Does The **Center** Go From A To B?

  The center of the ball, not the ball itself!

  math

  Jan 26, 2024
• 1³ + 3³ + 5³ + ... + 19³ = ?

  Oxford MAT Question

  math

  Jan 25, 2024
• An Elegant Proof That 1 + 1 = 2

  And 2 + 2 = 4 and so on

  math

  Jan 20, 2024
• Draw A Line To Solve This!

  A Challenging Geometry Puzzle

  math

  Jan 18, 2024
• How Full Is The Bottle?

  A Viral Math Brain Teaser: Can You Solve It?

  math

  Jan 17, 2024
• A Very Simple Math Problem

  Addition and Reciprocal: Don't Get This Wrong!

  math

  comics

  Jan 16, 2024
• How Many Different Bracelets Can Be Made?

  Mathematics: A Combinatorics Challenge

  math

  comics

  Jan 15, 2024
• A Very Smart Solution On Oxford University Geometry Problem

  The Quick And Elegant Way

  math

  Jan 13, 2024
• An Old Oxford University Question from 2010

  Oxford MAT Calculus Challenge

  math

  Jan 13, 2024
• How Much Space Do 3 Spheres Occupy? 🔴🔴🔴

  A Geometry Puzzle

  math

  Jan 12, 2024
• Can You Find The Sum of Infinitely Many Angles?

  The Beauty of Real Analysis: The Infinite Square Problem

  math

  Jan 11, 2024
• JEE Advanced Integral Challenge

  Indian Mathematics Exam Problem

  math

  Jan 10, 2024
• Challenging Math Puzzles

  Lists of Algebra, Geometry, Calculus, Probability, Physics and more

  math

  Jan 06, 2024
• Chaos Theory

  In 3 Poems

  poetry

  Jan 01, 2024
• What Exactly is A Fractional Derivative?

  A Mathematical Exploration of 'Half Derivatives'

  math

  Dec 30, 2023
• An Infinite-Nested Fraction Integral

  How to simplify the nested fraction?

  math

  Dec 28, 2023
• An Absolute Radical Integral

  It's an even function, what would you do?

  math

  Dec 27, 2023
• Derivative of x^x

  Differential Calculus

  math

  Dec 23, 2023
• How Many Zeroes Are There At The End Of 1000! ?

  A Number Theory Puzzle

  math

  Apr 26, 2023
• A Number Theory Puzzle

  Modular Arithmetic

  math

  Apr 23, 2023
• A Second Order Differential Equation

  A Calculus Problem

  math

  Apr 21, 2023
• A Mathematical Induction Problem

  A Useful Formula

  math

  Apr 17, 2023
• What's the Area between the Curve and the x-axis?

  The Witch of Agnesi

  math

  Apr 16, 2023
• The Witch of Agnesi: the Mystery of a Fascinating Mathematical Curve

  In the realm of mathematics, the witch of Agnesi (pronounced as aɲˈɲeːzi, -eːsi; -ɛːzi) is a cubic curve that emerges from two diametric...

  math

  Apr 16, 2023
• MIT Calculus Final Exam

  Integration by parts for inverse trig?

  math

  Apr 15, 2023
• A University Differential Equation

  A Calculus Challenge

  math

  Apr 13, 2023
• How Tall is the Glass?

  An Algebra Brain Teaser

  math

  Apr 13, 2023
• Calculus in Physics: Newtonian physics & Special Relativity

  Application of Maclaurin Series

  math

  Apr 07, 2023
• MIT Calculus Advanced Placement Test

  Integral Calculus

  math

  Apr 06, 2023
• The Klein Bottle Hat: A Mind-Bending Accessory That Defies Intuition

  Introduction to Topology

  math

  Apr 06, 2023
• Constructing The Riemann Integral

  Real Analysis

  math

  Apr 06, 2023
• The Lemniscate of Bernoulli: A Mathematical Masterpiece

  ∞ and beyond

  math

  Apr 05, 2023
• MIT Calculus Advanced Placement Test

  Differential Equation

  math

  Apr 05, 2023
• When Topology Meets Calculus

  Epsilon-delta

  math

  Apr 04, 2023
• A Somewhat Tricky Mechanics Question

  Let us look at some kinematics

  math

  Apr 03, 2023
• A United Kingdom Math Challenge

  SMC 2022

  math

  Apr 02, 2023
• MIT Calculus Advanced Placement Test

  Area under Curve

  math

  Apr 01, 2023
• Green's Theorem

  Vector Calculus

  math

  Apr 01, 2023