Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

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

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

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?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

They are three errirs in this question. Can you find them?

Make a sentence consisting of three words that have the whole alphabet.

Look at the picture and find out which square is not linked with any of the other squares.

Can you solve below mathematical equation?

2^1234 - 2^1233