You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Why do we preferably have round manhole covers and not square ones?

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

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

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?

How many times can you subtract the number two from the number fifty?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

With the help clues provided in the image, can you find the 5 digit key?