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

Where do you go to learn how to make ice cream?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

The answer I give is yes, but what I mean is no. What was the question?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?

What kind of tree can you carry in your hand?

What has a bottom at the top?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What is the difference between a jeweller and a jailer?