If 21x = 79x, what is the value of x?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

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

Why did Navjot Singh Sidhu put the new January calendar in the freezer

What question can you never answer yes to?

Give it food and it will live; give it water and it will die.

Why 1729 is a magic number? Answer Logically.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is at the end of a rainbow?