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

Why do Chinese men eat more rice than Japanese men do ?

What can go through glass without breaking it?

What does it mean?

Can you start the fire using two pieces of wood?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Why is it very easy to weigh a fish?

What is harder to catch the faster you run?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?