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?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

What can you hold in your right hand, but never in your left hand?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

What has one letter and starts with an E?

If 21x = 79x, what is the value of x?

Prove that twice of ten is the same as twice of eleven.