What does does this rebus picture means ?

What does this rebus puzzle means ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Which alphabet is a part of our body?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

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?