The Ghost-episodes 3 and 4

Episode 3

Were they worried about the stain at the library, which appeared more times?

Did Mr Otis see the ghost?

What was the ghost like? .

What did Mr Otis give the ghost for the noise of his chains?

Episode 4

How did he feel after Mr Otis give him the lubricator?

And after the twins threw a pillow at his head?

How old was the ghost? 

Why did he feel so humiliated?

What did he want?