Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

What 5-letter word typed in all capital letters can be read the same upside down?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Identify The phrase in the picture.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

What is the difference between a jeweller and a jailer?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?