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

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

The host of a game show offers the guest a choice of three doors. Behind one is an 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 against the law for a man living in Delhi to be buried in Mumbai?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

What's the best place to go shopping in the ocean?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Which is faster, Heat or Cold ? Explain.