Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Where do fish keep their money?

What do you answer even though it never asks you questions?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Can you replace the question mark with the correct number in the below table sequence?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

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?

How can one talk without saying a single word?