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?

What has a ring but no finger?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?