John was piloting a plane behind a car but was never able to overtake it. Why?

Find the next number in the sequence

5 12 24 36 ?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

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?

What can you catch but never throw?

When it's bad luck to meet a black cat?

I can write cow in 13 letters.

Can You?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

What building has the most stories?