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

What kind of band never plays music?

Can you name an animal whose killing cannot be performed without spilling your own blood?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

What can you see in the middle of March and April that you can never see in any other month?

You bought me for dinner but never eat me. What am I?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

What do you get if you add 2 to 100 four times?

Which wheel of car does not rotate when you turn your car right?

Which alphabet letter is a question?