Funny Riddles

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?

When it's bad luck to meet a black cat?

Prove that twice of ten is the same as twice of eleven.

Which country gets ill every time?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

How many words can a pen with half refill write?

Who are the happiest people in IPL match?

Why do you find that most of the buildings are deprived of the 13th floor?

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