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?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

By moving just one matchstick, you need to make the below statement true. Can you do it?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Why do we preferably have round manhole covers and not square ones?

A father's child, a mother's child, yet no one's son.

Who am I?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?