There is an ancient invention still used today in some parts of the world which allows people to see through walls. What is it?

A bat and a ball cost €1.10. The bat costs one euro more than the ball. How much does the ball cost?

Give me food, and I will live; give me water, and I will die. What am I?

Your parents have six sons including you and each son has one sister. How many people are in the family?

What is correct to say – “the yolk of the egg is white” or “the yolk of the egg are white”?

I have keys without key locks. I have space without rooms. You can enter but you cannot go outside.

When you have me, you immediately feel like sharing me. But, if you do share me, you do not have me.

A boy is walking down the road with 3 people in his family. One of them is a doctor. While the boy is the doctor’s son, the doctor is not the boy’s father. Then who is the doctor?

While going to the fair, John met 5 clowns on his way. Each clown had 4 dogs, each dog had 2 cats and each cat had 2 mice. How many in total were going to the fair?

What number comes next in the following sequence? 2 4 8 10 20 __

Arnold Schwarzenegger has a long one. Michael J. Fox has a short one. Madonna does not use hers. Obama always uses his.

What 5-letter word becomes shorter when you add two letters to it?