What breaks yet never falls, and what falls yet never breaks?

What type of tree can I carry in my hand?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

What jumps when it walks and sits when it stands?

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

I am quite hot but become too cold if you remove the first two letters. What am I?

Why is Saturday stronger than Monday?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?