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?

What is next number in the pattern below:

131 517 192 123 ?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

How can a man go eight days without sleep?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

Make a sentence consisting of three words that have the whole alphabet.

When it is alive we sing, when it is dead we clap our hands. What is it?

Why is Saturday stronger than Monday?

Can you find out the remainder when 3^300 is divided by 5?