Can you count the number of quadrilaterals in the picture below?

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?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What building has the most stories?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

What work can one never finish?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Rectify the following equality 101 - 102 = 1 by moving just one digit.