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?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)

What is the word or phrase below?
R | E | A | D

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What does below Rebus say?

XLR8

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

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?