Do You See It?

There was a strange boy who was born before his father. How can this be possible?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

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?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

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

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

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.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?