If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Decode the movie name from the below picture?

What does this rebus means ?

PROG WORKRESS

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

A man died, leaving $10,000,000 for his widow, 5 sons and 4 daughters. Each daughter received an equal amount, each son received twice as much as a daughter, and the widow received three times as much as a son.

How much did the widow receive?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

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

What kind of band never plays music?

Can you place six X (crosses) in below board without making three in a row in any way ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?