What always comes into a house through the keyhole?

The answer I give is yes, but what I mean is no. What was the question?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

What has one eye, but can’t see?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What time is it when an elephant sits on a fence?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?