What is the best name for Gambler Girl Friend?

In a Society, there are over 100 flats.

Flat 1 is named the first flat.
Flat 2 is named the second flat.
Flat 3 is named the third flat. And So On.....

A visitor decides to walk through all the flats, and he finds all the flats except flat 62.
Anmol later founds that the locals of the town have given it another name.

What is the name of the Flat?

What has one eye, but can’t see?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

What is the centre of gravity?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

How can a man go eight days without sleep?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

What number when divided in half becomes zero?