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

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Which alphabet is a part of our body?

What is the difference between a jeweller and a jailer?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)