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

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

How can you tell a raw egg from a hard-boiled egg?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

What building has the most stories?

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

When does a USA Potato change its nationality?

What's the only room from which no one can enter or leave