Can you replace the question mark with the correct number in the below table sequence?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Can you count the number of children in the picture below

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Solve the rebus riddle in the picture below.

John was drowned by he was not wet. How?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?