John was writing his first book. After saving the document, he locked his laptop with a password and mentioned some phrases for the hint box.

A friend of his tried opening his laptop but found out that it was password protected. Following is the hint that appeared.
1 mobile 3 books 2 roars 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches.

Can you help him in cracking the password?

You need to move three matchsticks to form three squares. Can you do it?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What does this simple rebus mean?

How can a man go eight days without sleep?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What does this rebus means ?

PROG WORKRESS

A father's child, a mother's child, yet no one's son.

Who am I?