Once, a woman went on a trip by plane. She sat next to a lawyer (律师). The lawyer was bored, so he asked the woman if she wanted to play a fun game with him.
The woman didn't want to play at first. Then the lawyer said to her, "If I can't answer your question, l give you 50 dollars. If you can't answer my question, you give me five dollars. "The lawyer thought that he couldn't lose and after some time, the woman said, "Yes."
The lawyer asked first, "How long is it between the earth(地球) and the nearest star?" Without saying a word, the woman gave him five dollars. Then the woman asked, "What goes up a hill with three legs and comes back down the hill with four legs?"
The lawyer didn't know the answer. He thought hard for a long time and even called his friends for help. But they didn't know the answer, either. So he gave the woman 50 dollars.
The woman took the 50 dollars without saying a word, but the lawyer wanted to know the answer. "What is the answer to your question?" he asked.
Without saying a word, the woman gave him five dollars.