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

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

If eleven plus two equals one, what does nine plus five equal?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

If a wheel has 54 spokes, how many spaces are there between the spokes?

Can you spot the man between the coffee bean in the picture below ?

Spot 5 differences in two Christmas tree below:

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?