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?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

How many triangles are there in the picture below?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

In the given picture, in how many ways can you read the word "Tiger"?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Replace the question mark with the correct number.

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10