The Coolest Hat Puzzle You've Probably Never Heard (SoME2)
![](https://i.ytimg.com/vi/EB77os9AuSY/mqdefault.jpg)
13:58
The Most Amazing Fact About Light Switching Puzzles (SoME1)
![](https://i.ytimg.com/vi/h80b1_RwIfY/mqdefault.jpg)
6:36
Can you solve the prisoner random hats puzzle?
![](https://i.ytimg.com/vi/_DaTsI42Wvo/mqdefault.jpg)
12:42
Teleporting Ants & Dynamic Programming #SoME2
![](https://i.ytimg.com/vi/yGwy2WyQCQE/mqdefault.jpg)
24:42
Lyapunov's Fractal (that Lyapunov knew nothing about) #SoME2
![](https://i.ytimg.com/vi/-vxW42R47bc/mqdefault.jpg)
26:37
Numberphile's Square-Sum Problem was solved! #SoME2
![](https://i.ytimg.com/vi/l7bYY2U5ld8/mqdefault.jpg)
13:07
A Curious Track, or What Bikes Are Hiding From Us
![](https://i.ytimg.com/vi/N5vJSNXPEwA/mqdefault.jpg)
4:35
Can you solve the prisoner hat riddle? - Alex Gendler
![](https://i.ytimg.com/vi/a1DUUnhk3uE/mqdefault.jpg)
14:34