How can you take 2 from 5 and leave 4?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Who is that with a neck and no head, two arms and no hands? What is it?

What number should come in place of the question mark below?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

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