Which number should replace the question mark?

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

Two old friends, Jack and Jill, meet after a long time, and discussing as:

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?

What is the coolest letter in the alphabet?

What goes through cities and fields, but never moves?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Why are televisions attracted to people?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

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

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E