What is the next number in this series?

4,12,84,3612....

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What's a single-digit number with no value?

What does this mathematical rebus means ?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Why did Buffon take the goal with him after every Juventus match?