There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

I have an eye but still cannot see.

Who am I?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.