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?

Name a key which is hardest to turn.

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Who has married many women but was never married?

Replace the question mark with the number below given a simple math problem.

What occurs twice in a week, once in a year but never in a day?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

How can one talk without saying a single word?

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