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

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

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?

Which wheel of car does not rotate when you turn your car right?

Why is it very easy to weigh a fish?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

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

Which alphabet is a part of our body?

What is harder to catch the faster you run?