Japanese temple geometry puzzle
4:13
Solve for the magic angle
9:11
The Turntable Paradox
11:41
Famous mathematician puzzled by child's homework
29:42
Why 4d geometry makes me sad
11:51
Impossible Dutchmen's Wives Puzzle
16:57
Popular Science's "Unsolved" Car Puzzle
3:46
The Race Part 9 of 10 – Ellipse angle compared to circle angle - getting interesting now!
14:03