Two men were sitting together in an airplane. They were on
a long journey.
  One of the men was a teacher and the other was a farmer.
  They sat without talking for a while, and then the farmer
said, “Let’s do something to pass the time.”
  “What do you want to do?” the teacher asked.
  “We can ask each other riddles,” the farmer said. “You
start.”
  “Let’s make the rules first,” the teacher said. “And let’s
make the game more interesting. Let’s play it for money. If we
don’t know the answer to a riddle, we have to pay each other $100.”
  The farmer thought about this for a while. Then he said,“That’s not fair.

You are a teacher, an educated man. You know more things than I do. I am just a farmer.”
  “That’s true,” the teacher said. “What do you think we should do?”
  “If you don’t know the answer to a riddle, you pay me $100.
If I don’t know the answer to a riddle, I’ll pay you $50.”
  The teacher thought about this, and then he said, “OK.
That’s fair. Who’ll go first?”
  “I will,” the farmer said. “Here is my riddle. What has three
legs when it walks, but only two legs when it flies?”
  The teacher repeated the riddle. “What has three legs
when it walks, but only two legs when it flies? Hmm. That’s a
good one. I’m afraid I don’t know the answer.”
  He gave the farmer $100, and then said, “Tell me the
answer. What has three legs when it walks but only two legs
when it flies?”

  “I don’t know,” the farmer said, and gave him $50.

          并　不　笨
  飞机上有两个人邻座，他们都是长途旅行。
  其中一人是教师，另一个是农夫。
  有一阵子，他们都没说话。突然，农夫说：“我们做点儿什么来消磨时
间吧。”
  “你想做什么呢？”教师问。
  “咱们可以猜谜语，”农夫说，“你先出题。”
  “那先定规则，”教师说，“咱们可以使游戏变得更有趣些。赌钱吧。
如果我们之间谁要是猜不出谜底，就输给对方一百美元。”
  农夫想了一会儿，说：“那不公平。你是教师，受过教育。你知道的肯
定比我多，我只是一个农夫。”
  “那倒是，”教师说，“那你说怎么办呢？”
  “如果你不知道谜底，就付给我一百美元；如果我不知道，只付给你
五十美元。”
  教师想了想，说：“行，这样比较公平。谁先来？”
  “我先来，”农夫说，“什么东西走路时三条腿，飞时两条腿？”
  教师重复了谜语。“走路时三条腿，飞时两条腿？非常好的谜语。我想
我猜不出来。”
  于是他给了农夫一百美元，说：“告诉我谜底吧，什么东西走路时三条
腿，飞时两条腿？”
  “我也不知道，”农夫说，然后给了教师五十美元。