By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

How can you leave a room with two legs and return with six legs?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

What always comes into a house through the keyhole?

What number should come in place of the question mark below?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?