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?

I cannot talk, but I always reply when spoken to. What am I?

What is the coolest letter in the alphabet?

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

What does Alexander the Great and Winnie the Pooh have in common?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What has no start, end, or centre?

Which part of London exists in France as well ?

How can you tell a raw egg from a hard-boiled egg?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?