Most of them. The fact that you’re being offered an unusual bet is itself evidence that you’re wrong. The Guys and Dolls quote applies pretty widely:
One of these days in your travels, a guy is going to show you a brand-new deck of cards on which the seal is not yet broken. Then this guy is going to offer to bet you that he can make the jack of spades jump out of this brand-new deck of cards and squirt cider in your ear. But, son, do not accept this bet, because as sure as you stand there, you’re going to wind up with an ear full of cider.
Most of them. The fact that you’re being offered an unusual bet is itself evidence that you’re wrong. The Guys and Dolls quote applies pretty widely: