John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

What brings you down but never up?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

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?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

who is silent in the parliament?

Can you identify the hidden rebus in the image below?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?