Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

What can you catch but never throw?

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

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

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?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

I travel all around the world but always stay in the corner. What am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?