A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Can you find the key in the picture below?

What is black when you buy it, red when you use it, and gray when you throw it away?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

I have branches, but no fruit, trunk or leaves. What am I?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E