A poet and a lawyer were traveling together on a plane. The lawyer was bored and said to the poet, "Hey, you, do you want to play a game? I'll ask you a question, and if you get it wrong, you give me �5. Then, you ask me a question, and if I can't answer it, I'll give you �5."
The poet thought about this for a moment, but he decided against it, seeing that the lawyer was obviously a very bright man. He politely turned down the lawyer's offer.
The lawyer, who was really bored, tried again. "Look, I'll ask you a question, and if you can't answer it, you give me �5. Then you ask me a question, and if I can't answer it, I'll give you �50."
The poet agreed. "Okay," the lawyer said, "what is the exact distance between the Earth and the Moon?"
The poet, obviously not knowing the answer, didn't stop to think about the lawyer's question. He took a �5 bill out of his pocket and handed it to the lawyer.
The lawyer happily accepted the note and promptly said, "Okay, now it's your turn."
The poet thought about this for a few minutes, then asked, "All right, what goes up a mountain on three legs, but comes down on four?"
The bright glow quickly vanished from the lawyer's face. He thought about this for a long time, taking out his notepad and making numerous calculations. He finally gave up on his notepad and took out his laptop, using his Multimedia Encyclopedia. As the plane was landing the lawyer gave up. He reluctantly handed the poet a �50 note.
The poet accepted it graciously, getting ready to stand up. "Wait!" the lawyer shouted, "you can't do this to me! What's the answer?"
The poet looked at the lawyer and calmly put a �5 note into his hand.