10+10 and 11+11 can give you the same answer.

Explain how?

You can hear me, but you can't touch or see me.

What am I?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Find out the missing number in the picture attached:

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

I have teeth but i don't bite. Who Am I ?

What does a man do only once in his lifetime, but women do once a year after they are 29?