Be active and find the killer in the picture Riddle below.

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Can you Find and name the hidden bird in the picture below ?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

You need to remove two matchsticks to make the below equation true. Can you do it ?

There are forty elephants and they have forty-fore heads. How can this be possible?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Find out the number of circles in the given picture having Illusion