Two brainteasers -- one diabolically simple, the other mathematically impossible.
This week we've got 2 puzzles that are PERFECT to take down your most competitive friends. One of them is really, really hard, and the other is simply IMPOSSIBLE. The best part: they won't know which one is which! Check out this week's video, and take the challenge: after you learn the puzzle, press pause and take on Brian... see if you can figure out which is the impossible puzzle, and how to solve the other one.