Japanese temple geometry puzzle
10:00
False proof 2 + 2 = 5. Can you spot the mistake?
29:42
Why 4d geometry makes me sad
9:04
Find the angle X | Norway Math Olympiad Problem
12:11
When a genius misses an easy question
12:46
6 Impossible Puzzles With Surprising Solutions
9:37
¿Cómo se realizan estos cortes tan increíblemente finos?
9:58
This Ancient Technology Makes Things Spin Really Fast!
8:33