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

Can you place six X (crosses) in below board without making three in a row in any way ?

Count the number of triangles in the below picture?

What has 88 keys?

The world's largest Thanksgiving turkey was on display at a fair. Everyone was admiring it when suddenly a woman ran up and shot the turkey and left. Everyone knew her yet nobody made any attempts to stop or report her. Why?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?