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?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

What word is pronounced the same if you take away four of its five letters?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Who has married many women but was never married?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

We know that money can be names differently for the purpose it is used for. Some of the examples of money given at following places or for following activities:

In temple = Daan
In school = Fees
During marriage = Dowry
For divorce = Alimony
Paying government = Tax
In court = Fine
Employer to employee = Salary
To kidnappers = Ransom
For illegal reason = Bribe
To civil servant retirees = Pension

Do you know what do we call the money a husband gives to his wife?

Can you decipher the below rebus?

PBLUESAISNUERSES

Can you find out which number multiplied by itself will give the output as 12345678987654321?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?