What is more useful when it is broken?

There is something which is always coming but never arrives?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

I can write cow in 13 letters.

Can You?

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

Can you identify the Oscar-winning movie from the rebus below?

What demands an answer, but asks no questions

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?