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

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

Why did the Girl throw the butter out of the window?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Can you name some countries which do not have the alphabet 'A' in them?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?