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?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What Deficiency does the below rebus represent?

VIT_MIN

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

What is the difference between a jeweller and a jailer?

What is the riddle which can be asked all day with a different correct answer each time.

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?