Replace the question mark with the correct number.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

How many sides does a circle have?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

I make two people out of one. What am I?

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?