What is the fastest way to double your money?

Buy me, smell me or deliver me, I do not change.

Who am I?

What has lots of eyes, but can’t see?

Forwards I am heavy, backward I am not. What am I?

Can you divide the below-given shape into four equal and identical pieces?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

If your uncle’s sister is not your aunt, what relation is she to you?

What do you get if you add 2 to 100 four times?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)