Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Who are the happiest people in IPL match?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

If you say my name, I will no longer exist. What am I?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.