I'm new to the board, so I don't know if this has been posted before, and I'm not sure how I'd search for it, so I'll just post
A lawyer is sitting next to a blonde on an airplane. Being the immoral man that he is, he decides to capitalize on the stupidity of all blondes and proposes a game to her. The game goes like this: he will ask her a question. Using any and all tools availible, if she can't find the answer, then she pays him $5. Then she gets to ask him a question, and he does the same. She politely declines the game, because she really didn't want anything to do with this guy.
About 30 minutes later, the lawyer decides he really wants to get some of this blonde's money, so he asks her to play the game again, except this time, if the lawyer cannot answer her question, he will pay her $100, but if she cannot answer his question, she only pays him $5. The blonde, not wanting to pass up such an opportunity, decides it can't hurt and accepts the challenge.
The lawyer goes first and asks the following: "Why is the sky blue?" The blonde thinks a little bit, and after a few minutes hands the lawyer $5. She follows up with a question: "What walks on 4 legs, runs uphill on two legs and runs downhill on 3 legs?" The lawyer, not knowing the answer, starts to panic. He takes out his laptop, connects to the internet, and looks around online to try to find the answer. He also calls all of his friends. After about 2 hours, he finally decides to give up. He hands her $100, she takes it, and decides to go back to sleep. The lawyer, a bit stunned, finally asks, "Well, what was the answer?" The blonde hands him $5.