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

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Can you solve below mathematical equation?

2^1234 - 2^1233

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

What number do you get when you multiply all of the numbers on a telephone's number pad?

It is always ahead of me yet I can never see it. What is it?