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

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Name a key which is hardest to turn.

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?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

Can you start the fire using two pieces of wood?

I have feet, but no legs. Which animal Am I?

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?