Remove two matchsticks to make the below equation correct.

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

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

What has one eye, but can’t see?

Replace the question mark in the picture below.

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

Can you find out the remainder when 3^300 is divided by 5?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?