If you're looking for a way to kill a little time, or mess with the mind of a toddler (or some of your less uh, gifted friends) then this video will give you plenty ideas.

YouTube user Quirkology must owe a loan shark some serious cash, because he's invested quite a bit of time making a series of videos with bets you'll always win. Some of these are pretty believable; we would have taken a couple of these bets, if only out  of some weird need to prove ourselves.

These are only gonna be a good strategy until your dumb friends find the videos too, so move quickly while you can still fool your friends into thinking you have super human strength, or that you have the power to make them invisible. Aw, friends are so dumb.