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?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

What has lots of eyes, but can’t see?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Can you replace the question mark with the correct number?