You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What work can one never finish?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

What jumps when it walks and sits when it stands?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Buy me, smell me or deliver me, I do not change.

Who am I?