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2020

Insanely Hard Geometry Problem – Solve For The Angleoriginal ↗
23 May 2020
The Square Inside The Squareoriginal ↗
18 May 2020
Incredible Cube Puzzle (Asked To 14 Year Olds In Taiwan)original ↗
13 May 2020
The Overlapping Semicircle Problemoriginal ↗
8 May 2020
Hard Competition Problem To Solve In 1 Minuteoriginal ↗
4 May 2020
The Impossible Sum Puzzleoriginal ↗
29 Apr 2020
A Super Hero’s Solution To A Challenging Problemoriginal ↗
24 Apr 2020
X Marks The Spot – Solve For Angle Xoriginal ↗
21 Apr 2020
When A 17 Year Old Proved The S.A.T. Was Wrongoriginal ↗
18 Apr 2020
A Whopper Of A Problemoriginal ↗
14 Apr 2020
A Surprisingly Hard Problem For Students!original ↗
8 Apr 2020
Equilateral Triangle In A Squareoriginal ↗
1 Apr 2020
The Missing Product Pair Puzzleoriginal ↗
27 Mar 2020
Octagon Cut From Rectangleoriginal ↗
20 Mar 2020
Four pi’s to represent any number!original ↗
14 Mar 2020
The 8 – 4 = 61 Matchstick Puzzleoriginal ↗
9 Mar 2020
How Many Balls Are There? Viral Puzzleoriginal ↗
3 Mar 2020
Solve For The Red Areaoriginal ↗
28 Feb 2020
Oxford’s Triangle Ratio Questionoriginal ↗
25 Feb 2020
Square Angle Bisector Puzzle – Think Outside Or Inside The Box!original ↗
21 Feb 2020
Incredible Viral Puzzle From Japan!original ↗
19 Feb 2020
Solve For The Radius, 2017 AMC 12A Problem 16original ↗
10 Feb 2020
Clever Logarithm Problemoriginal ↗
5 Feb 2020
Radius Of Circle Between Quarter-Circlesoriginal ↗
31 Jan 2020
Solve For 3 Digits (Belgian Olympiad)original ↗
28 Jan 2020
Inscribed Triangle In A Rectangleoriginal ↗
21 Jan 2020
Viral Math Problem – Calculator, Books, Laptopsoriginal ↗
16 Jan 2020
Tricky Algebra Problem From Nepal Olympiadoriginal ↗
14 Jan 2020
Triangle Area 1984 AIMEoriginal ↗
10 Jan 2020
Cube Inside Hemisphere Puzzleoriginal ↗
7 Jan 2020
The Answer Is Too Goodoriginal ↗
2 Jan 2020

2019

No One Selected The Correct Answer To This Test Questionoriginal ↗
31 Dec 2019
Three Runners Puzzle (From India’s Civil Services Exam)original ↗
27 Dec 2019
What Is The Area? Square Inside Overlapping Circlesoriginal ↗
24 Dec 2019
The New Way To Solve Quadratic Equations Everyone Is Talking Aboutoriginal ↗
20 Dec 2019
What Is The Area Inside The Rectangle?original ↗
16 Dec 2019
A Puzzling Test Question From New Zealandoriginal ↗
12 Dec 2019
Passcode Question SPMoriginal ↗
8 Dec 2019
The Sum Of 5th Powers – Solve If You Are A Geniusoriginal ↗
5 Dec 2019
Solve For The Radius From Three Chord Lengthsoriginal ↗
29 Nov 2019
What Are The Missing Weights? A Hanging Mobile Balance Puzzleoriginal ↗
26 Nov 2019
A Golden Equationoriginal ↗
18 Nov 2019
Quarter Circles In A Square – What Is The Area?original ↗
15 Nov 2019
SAT Hard Trapezoid Questionoriginal ↗
12 Nov 2019
Beautiful Problem: Binomial Product (IIT JEE Advanced)original ↗
7 Nov 2019
Can You Solve This Year’s Hardest HSC Problem?original ↗
5 Nov 2019
1000 Euro Questionoriginal ↗
31 Oct 2019
How Much Does One Cat Weigh? Logic Puzzleoriginal ↗
28 Oct 2019
Sum Of Squares Puzzleoriginal ↗
25 Oct 2019
The Chord Progression Puzzleoriginal ↗
22 Oct 2019
Birthday Holidays Puzzleoriginal ↗
18 Oct 2019
Problem For 14 Year Olds In Hong Kongoriginal ↗
15 Oct 2019
Solving The Russian Doll Problem (1984 AIME Problem 7)original ↗
11 Oct 2019
Challenging Problem For 12 Year Olds In Singaporeoriginal ↗
7 Oct 2019
Killer Problem For 11 Year Olds In Chinaoriginal ↗
3 Oct 2019
Walking To School Riddleoriginal ↗
30 Sept 2019
Tricky Trig Problem – Solve In 2 Minutes (IIT JEE)original ↗
26 Sept 2019
Puzzle Inspired By Mark Rober Tweetoriginal ↗
23 Sept 2019
Area Of The Square Puzzle (Olympiad Practice)original ↗
20 Sept 2019
How Old Is The Father Riddleoriginal ↗
17 Sept 2019
Solve These Integrals In Seconds (IIT JEE Mains)original ↗
13 Sept 2019
Hard Geometry Problem From Switzerlandoriginal ↗
9 Sept 2019
Evaluate A Function (GRE Practice)original ↗
4 Sept 2019
The Seemingly Impossible Triangle Race Riddleoriginal ↗
29 Aug 2019
World’s Toughest Riddle Explainedoriginal ↗
26 Aug 2019
Oxford’s Coin Tossing Interview Questionoriginal ↗
23 Aug 2019
Oxford Admissions Logarithm Questionoriginal ↗
19 Aug 2019
What Is The Square’s Side Length?original ↗
16 Aug 2019
Tricky GRE Test Problem – Solve In 2 Minutesoriginal ↗
12 Aug 2019
99 Percent Fail – Solve For The Lengthoriginal ↗
8 Aug 2019
2019 IMO Question 1original ↗
5 Aug 2019
What Is 8 ÷ 2(2 + 2) = ? Mathematician Explains The Correct Answeroriginal ↗
31 Jul 2019
A Seemingly Impossible Car Riddleoriginal ↗
30 Jul 2019
Solving NASA’s Emoji Puzzleoriginal ↗
26 Jul 2019
What Is The Area Between Circles?original ↗
23 Jul 2019
The Viral Equation Breaking The Internetoriginal ↗
16 Jul 2019
What Is The Length Of The Line Inside The Square?original ↗
15 Jul 2019
How To Solve Amazon’s Mystery Dice Interview Questionoriginal ↗
12 Jul 2019
What Is The Side Length?original ↗
8 Jul 2019
A Surprising Integraloriginal ↗
4 Jul 2019
What Time Is It? Puzzle From Russiaoriginal ↗
2 Jul 2019
How To Solve An MIT Entrance Exam Problem, Algebra 1869original ↗
27 Jun 2019
What Fraction Of The Total Area Is Red?original ↗
24 Jun 2019
Logic Puzzle: When Does The Thief Tell The Truth?original ↗
20 Jun 2019
Chinese Test Question Stumps US Teachers And Goes Viraloriginal ↗
17 Jun 2019
Viral Algebra Problem – Solve In 90 Secondsoriginal ↗
14 Jun 2019
How To Solve Facebook’s Raining In Seattle Interview Questionoriginal ↗
10 Jun 2019
Tricky Australian Olympiad Questionoriginal ↗
4 Jun 2019
The SATs question that made students cryoriginal ↗
30 May 2019
The Viral Meme 9 + 10 = 21 Solvedoriginal ↗
28 May 2019
Viral Math Problem – Simple Formula For The General Solutionoriginal ↗
24 May 2019
Teen Won $20,000 Scholarship Solving This Questionoriginal ↗
21 May 2019
Math Problem For 13 Year Olds That Stumped Meoriginal ↗
16 May 2019
Rectangle Area From 3 Identical Circles – Solving Hard GCSE Problemoriginal ↗
13 May 2019
One Of The Hardest GCSE Test Questions – How To Solve The Cosine Problemoriginal ↗
8 May 2019
How To Solve A Tricky GCSE Probability Problemoriginal ↗
6 May 2019
Solve For The Radius – Fun 1970s Math Contest Problemoriginal ↗
2 May 2019
Logic Puzzles From The Tonight Show (1982). Can You Solve Them?original ↗
29 Apr 2019
The Pythagoras Pie Puzzleoriginal ↗
25 Apr 2019
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