In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

Can you replace the question mark with the correct number in the below table sequence?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

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