Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

A girl was standing near the window thinking something. All of a sudden she decides something and throws something out of the window. She dies very soon after throwing it. She was perfectly healthy and had no disease or allergy. No one killed her and she did not commit suicide.

Can you think of any possible explanation that is logical as well for what happened there?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

What is the riddle which can be asked all day with a different correct answer each time.

What Time Should the last watch show in the below figure?

Find the value of "?" in the ball picture Riddle below: