Why do you find that most of the buildings are deprived of the 13th floor?

Can you guess the name of the month by looking the below rebus ?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

I always drive my customer away.

Who am I?

No matter how little or how much you use me, you change me every month. What am I?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

How can you leave a room with two legs and return with six legs?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99