What does this mathematical rebus means ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

What work can one never finish?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What's the best place to go shopping in the ocean?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

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