Can you start the fire using two pieces of wood?

What is the largest number you can write with just 3 digits?

What is the fastest way to double your money?

In the picture given below, can you find out which digit will take place of the question mark?

What is at the end of a rainbow?

What is the next number in this series?

4,12,84,3612....

I have Rs.50 and I spend it in the way as below.

What has many keys but can’t open a single lock?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.