Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

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 number when divided in half becomes zero?

Can you decipher the below rebus?

PBLUESAISNUERSES

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

Out of four images which one is the odd one out?