During which month do people sleep the least?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

In the picture given below, can you find out which digit will take place of the question mark?

I look at you, you look at me I raise my right, you raise your left. What am I?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

My location can be determined by the below rebus.
So where am i ?

What does this mathematical rebus means ?

What can go through glass without breaking it?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?