What building has the most stories?

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

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

What has many teeth, but cannot bite?

Shyla was sleeping in her apartment when suddenly a robber broke into her house. He asked her to stay quiet and started looting the cash and jewelry. Suddenly the landline phone started ringing. The robber pointed a gun at Shyla and asked her to pick up and talk without giving away the situation.

She picked up the phone and it happened to be her husband. She spoke, Is it an emergency darling? Do give me a call when your flight lands, I will prepare your favorite food that will help you relieve the stress. Then she hanged up.

10 minutes after, the police arrive at the scene and catch the robber. How did the police know about the robbery?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Count the squares in the matchstick puzzle below?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

How many words can a pen with half refill write?