What is always in front of you but can’t be seen?

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

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

Can you find a rabbit in the given picture?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

What's the best place to go shopping in the ocean?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

The cream is heavier than Milk. True or False?

Solve the puzzle by telling what does below picture means.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?