Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Why are all black people so quick ?

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

Prove that the below maths equation is true.

8 + 8 = 91

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

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

A bomb exploded in a room full of married couples and no one died. How?

If two's company, and three's a crowd, then whats four and five ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT