A nice chord problem from Bangladesh!
3:08
Fun fact: baseball's home plate is an impossible shape!
13:19
Can you solve this viral problem?
5:55
This question is actually impossible
12:16
7 Outside The Box Puzzles
6:14
What is the rule? Challenging homework question
6:49
Why You Can't Solve Every Equation (and Why That's Awesome)
22:04
The Genius Way Computers Multiply Big Numbers
8:05