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

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

Where do fish keep their money?

Prove that the below maths equation is true.

8 + 8 = 91

I am sure no one can have two things for dinner. what are they?

What can you see in the middle of March and April that you can never see in any other month?

Through your logical capabilities, can you make 7 an even?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

The Little ant seems to be always confused. Do you know why?

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