John was piloting a plane behind a car but was never able to overtake it. Why?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What is more useful when it is broken?

I cannot talk, but I always reply when spoken to. What am I?

What is the next number in this series?

4,12,84,3612....

Which wheel of car does not rotate when you turn your car right?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?