What's the best place to go shopping in the ocean?

Different lights make me strange by changing me into different sizes. What am I?

Who can jump higher than a Mountain?

I can be cracked, made, told, and played. What am I?

Why is Saturday stronger than Monday?

10+10 and 11+11 can give you the same answer.

Explain how?

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?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

I have branches, but no fruit, trunk or leaves. What am I?

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