Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

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 brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

It belongs to you, but other people use it more than you do. What is it?

What is black when you buy it, red when you use it, and gray when you throw it away?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

I shave every day, but my beard stays the same. What am I?