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

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

What you cannot hold but it is yours?

If you say my name, I will no longer exist. What am I?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Can you place six X (crosses) in below board without making three in a row in any way ?

Find the next number in the series below

21 32 54 87 131 ?

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

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?