Which is faster, Heat or Cold ? Explain.

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Solve this riddle by finding the odd one out from the rest.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

What two things can you never eat for breakfast?

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?