Why is a river so rich ?

How can you tell a raw egg from a hard-boiled egg?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
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GAMES
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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?

I make two people out of one. What am I?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

It is always ahead of me yet I can never see it. What is it?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?