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

I am quite hot but become too cold if you remove the first two letters. What am I?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

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

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

What begins with T, ends with T, and has T in it?

81 x 9 = 801. What must you do to make the this equation true?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

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?