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

Explain how?

When can we add 2 to 11 and get 1 as the correct answer?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

I have an eye but still cannot see.

Who am I?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Can you find out who is the kidnapper in below Picture and why, Explain ?

What you cannot hold but it is yours?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

What is both possible and impossible at the same time?