There is an ancient Greek Story about a monster .It asked people a question .If they could not answer correctly ,it killed them !This is the question :

It has four legs in the morning .

It has two legs at noon .

It has three legs in the evening .

What is it ?

The monster killed many people .Then one man succeeded in guessing the correct answer :It is a man .When a man is a baby (the morning of his life ),he crawls on hands and feet (four “legs ”).When he is fully grown ,he walks on two feet .When he is old ,he walks with a stick ,so he has three “legs ”.

Questions like these are called “riddles ”.You will find them in all languages .Some are hard and some are easy .Here is an easy one :

It has legs but cannot walk .What is it ?

It is a chair .Can you think of other answer to that riddle ?

这是怎么一回事?

希腊有一个关于怪物的故事，它要问人们一个问题，如要他们不能正确回答，它就杀了他们，这个问题是：

它在早上有四条腿;

它在中午有两条腿;

在晚上它有三条腿;

它是什么?

怪物杀了很多人。有一个人成功地猜测正确答案：这是一个男人。当一个人是一个婴儿(他生命的早晨)，他爬在手和脚上(四“腿”)。当他长大，他在两只脚走路。当他老了，他拄着拐杖走路，所以他有三的“腿”。

这些问题都是所谓的“谜”。你会在所有语言中找到他们。有些是硬的，有些是容易的。下面是一个简单的人：

它有条腿却不能走路。它是什么?

这是一把椅子。你能想到其他回答这个谜吗?