Prove that twice of ten is the same as twice of eleven.

Buy me, smell me or deliver me, I do not change.

Who am I?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

By what process could you make a 'Tea-Table' into food?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Can you name some countries which do not have the alphabet 'A' in them?

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

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?