Einstein and Mr. Bean were sitting next to each other on a long flight.
Einstein said, “Let’s play a game. I will ask you a question, if you don’t know the answer, you pay me only $5 and then you ask me a question and if I don’t know the answer, I will pay you $500.”
Mr. Bean agreed. Einstein asked the first question: What’s the distance from the Earth to the moon?
Mr.Bean didn’t say a word, reached his pocket and pulled out a $5.
Now, it was Mr.Bean’s turn.
He asked Einstein: What goes up a hill with 3 legs and comes down on 4 legs?
Einstein searched the internet and asked all his smart friends. After an hour he gave Mr.Bean $500. Einstein went nuts and asks: Well, so what goes up a hill with three legs and comes down with four?
Mr. Bean quietly reached his pocket and gave Einstein $5.