What has to be broken before you can use it?

Imagine you are in a room with no windows or doors. How will you get out?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

What does this rebus mean?

O
N
C
E
TIME

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

What does this rebus means ?

PROG WORKRESS

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?