In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

Can you find the six hidden animals in the picture below?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

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.

Can you solve this picture maths equation?

What brings you down but never up?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

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?

What four weights can be used to balance from 1 to 30 pounds?