What runs around the whole yard without moving?

I always drive my customer away.

Who am I?

What does it mean?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

The more it dries, the wetter it becomes. Can you tell what it is?

In the picture given below, can you find out which digit will take place of the question mark?

Spot what is wrong here in below Picture?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?