Ludi Mathematici
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Apparently There’s A Math Problem In America
barry leung
2–4 minutesRead more: Apparently There’s A Math Problem In AmericaIf I were to tell you that your go-to meal at the local steakhouse has a price reduction of 600%,…
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Calculus Challenge: A Slanted Revolution
barry leung
1–2 minutesRead more: Calculus Challenge: A Slanted RevolutionIn this entry, we will solve the above problem using a rotational matrix. Give this problem a try before jumping…
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Math Genius Mary Adler’s Calculus Problem
barry leung
2–3 minutesRead more: Math Genius Mary Adler’s Calculus ProblemThe real Math Girl Mary Adler is a fictional character from the movie ‘Gifted’. In the Gifted universe, she is…
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University Has Become A Wealth Extraction Machine And Taught Me Absolutely Nothing Useful
barry leung
7–11 minutesRead more: University Has Become A Wealth Extraction Machine And Taught Me Absolutely Nothing UsefulAn Absurd Price Hike When I did my mathematics degree, I was charged around £28,000 each year for a 3-year undergraduate…
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Here’s How Archimedes Measured a Curve Without Calculus
barry leung
5–7 minutesRead more: Here’s How Archimedes Measured a Curve Without CalculusArchimedes tackled the long-standing problem of finding the area of a parabolic segment (the region between a parabola and a…
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An Oxford MAT Exam Question
barry leung
1–2 minutesRead more: An Oxford MAT Exam QuestionThis is a fairly standard exercise in integral calculus. I guess the standards for getting into Oxford to read mathematics…
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Oxford University Mathematics Challenge
barry leung
1–2 minutesRead more: Oxford University Mathematics ChallengeA simple cubic equation sort of looks like a snake meandering through the origin. Adding other terms changes the way…
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Can ChatGPT, Google’s Gemini and Microsoft’s Copilot Pass The Apple-Orange Interview At Apple 🍎?
barry leung
3–4 minutesRead more: Can ChatGPT, Google’s Gemini and Microsoft’s Copilot Pass The Apple-Orange Interview At Apple 🍎?Two years ago, I wrote an article on the above logical puzzle about correctly labelling the three boxes containing apples,…
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How Big Is The Red Area?
barry leung
1–2 minutesRead more: 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…
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Are You Smart Enough To Find A + H?
barry leung
1–2 minutesRead more: 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…
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An Algebra Puzzle
barry leung
1–2 minutesRead more: An Algebra PuzzleThere are many ways one can solve this. It all boils down to what sort of techniques you are most…
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Can You Count Them All?
barry leung
1–2 minutesRead more: 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…
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Happy Valentine’s Day: Can You Maximize The Love On This Day?
barry leung
1–2 minutesRead more: 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…
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A Geometry Puzzle: What’s OC?
barry leung
1–2 minutesRead more: 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…
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What Day Of The Week Is It?
barry leung
1–2 minutesRead more: 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…
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A Cambridge University Admission Question
barry leung
1–2 minutesRead more: A Cambridge University Admission QuestionThis is question 4 from the Test of Mathematics for University Admission practice paper by the University of Cambridge. The…
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Will Homer Simpson Get His Own Seat?
barry leung
1–2 minutesRead more: 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…
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Can You Outsmart Jane Street’s Tic Tac Toe Bot?
barry leung
1–2 minutesRead more: 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…
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Can You Find All Possible Solutions In Both Cases?
barry leung
1–2 minutesRead more: 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…
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Can You Find The Number Below 400? This question took me less than a minute!
barry leung
1–2 minutesRead more: 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,…
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Can You Solve This Oxford University Math Challenge?
barry leung
1–2 minutesRead more: 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…
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Ⓒ 2026 MATH GAMES By Barry Leung, CoMN, KoMG, ARM