Name a key which is hardest to turn.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?

Can you find out the remainder when 3^300 is divided by 5?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

What can you hold in your right hand, but never in your left hand?

Can you find the six hidden animals in the picture below?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

How many words can a pen with half refill write?