You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Solve the puzzle by telling what does below picture means.

What always comes into a house through the keyhole?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

Which wheel of car does not rotate when you turn your car right?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

A Car driver was heading down a street in Washington. He went right past a stop sign without stopping, he turned left where there was a 'no left turn' sign and he went the wrong way on a one-way street. Then he went on the right side of the road past a cop car. Still, he didn't break any traffic laws. Why not?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?