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?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

The centre of the third figure is empty. What digit should fit inside?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

Why is Saturday stronger than Monday?

How many bananas can you eat if your stomach is empty?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.