Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

What has 13 hearts but no other organs?

Can you count the number of squares in the figure below?

How many triangles are there on the puzzle below?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What can go up a chimney down, but can’t go down a chimney up?