Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

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?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

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

John is the son of Jacob.
So,
Jacob is the_____of John's father?

When we see 2 but call 10?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

Which number should replace the question mark?

There are 3 apples in the basket and you take away 2. How many apples do you have now?