If 21x = 79x, what is the value of x?

What does this rebus means ?

PROG WORKRESS

Can it be possible to build a house that has all its four walls facing towards the South?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



This process kept repeating till it fell on the last leaf losing 1/75th of its volume.



Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

How can you drop a raw egg from a height onto a concrete floor without cracking it?