What is so fragile that saying its name breaks it?

Can you move 2 matchsticks to form four equal sized squares.

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Why is it very easy to weigh a fish?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

10+10 and 11+11 can give you the same answer.

Explain how?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?