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

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

How many times can you subtract the number two from the number fifty?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

What is the below Rebus indicate?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

What two things can you never eat for breakfast?