What is harder to catch the faster you run?

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

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 container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

How many sides does a circle have?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Find the 8 in the below-given Image.

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

You need to move three matchsticks to form three squares. Can you do it?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?