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

Can you name four days which start with the letter 'T'?

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?

I am quite hot but become too cold if you remove the first two letters. What am I?

What four weights can be used to balance from 1 to 30 pounds?

Complete the table series riddle by finding the number that can replace "??".

French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Which number comes next in the number series?

2, 9, 30, 93, ?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13