Replace the question mark with the number below given a simple math problem.

Which letter of the alphabet has the most water?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Why is it very easy to weigh a fish?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Eight Chelsea player makes the following statements :

1. Seven of us are lying here.
2. Six of us are lying here.
3. Five of us are lying here.
4. Five of us are lying here.
5. Four of us are lying here.
6. Three of us are lying here.
7. My name is Torres.
8. My name is Lampard.

The last two are Lampard and Torres or maybe Torres and Lampard.
So can you deduce which of the last two is Lampard or Torres?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Why are televisions attracted to people?

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