A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

Who can jump higher than a Mountain?

What kind of band never plays music?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Name a key which is hardest to turn.