What does this simple rebus mean?

Can you divide the below-given shape into four equal and identical pieces?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

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?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

How many letters are in the alphabet?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

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

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?