What letter are people the most afraid of?

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There are twenty-one benches of two kinds in the room. One has three legs each and the other has four legs each. There are eighty legs in all. How many benches are there with three legs and how many with four leg?

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A．3 three-leg and 18 four-leg.

B．4 three-leg and 17 four-leg.

C．5 three-leg and 16 four-leg.

D．2 three-leg and 19 four-leg.

There are two criminals in the same prison. One is a thief and sentenced to two years in prison while the other is a murderer sentenced to death. But the murderer will only be kept in prison for two weeks. Why?

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A．Because the murderer knows the policemen very well.

B．Because the murderer is wrongly sentenced to death.

C．Because the murderer is not healthy.

D．Because the murderer will soon be shot.

The gas tank on Mr. Brown's boat holds 18 gallons. One day, Brown spent one third of the gas in the tank. When he got to a gas station, he had his tank filled with 5 gallons of gas. How many gallons of gas did he have in his tank when he left the station?

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Look at the following numbers and then fill in the blank with a suitable one：65536、256、16、________

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John had $ 24. He left one third of it at home. He spent three fourths of the money he took buying some books in a bookstore. How much money did he leave until that night?

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　　Guess what it is according to the following:

　　It has a face and a pair of hands;

　　It doesn't run as often as it stands.

　　Off it goes suddenly at the firing gun;

　　And it stops when people no longer run.

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A taxi without breaking the traffic rules was stopped by a policeman. Why?

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A．The driver used to be a thief.

B．The policeman himself wanted to take it home.

C．The policeman was not happy that day.

D．The driver was drunk that day.

A boy student lives near a school, but he is often late for school. Why?

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A．He is not well.

B．He is too poor.

C．He is not bright enough.

D．He is the student of another school.

What is the room filled with while we are still able to move about freely in the room?

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