By using 'because' continuously three times, can you make an English statement ?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

Find the number of squares in the below picture

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

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 three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?