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

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?

What has lots of eyes, but can’t see?

Why Wine Glass Stem is so long?

What is the centre of gravity?

If two's company, and three's a crowd, then whats four and five ?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Which alphabet is a part of our body?

Which fur should we be getting from the Lion?

what does this picture(rebus) riddle means ?