Complete the table series riddle by finding the number that can replace "??".

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

At a Society election for president, precisely 963 votes were cast.
There is a total of 4 candidates that participate in the election.

The winning candidate exceeds the opponents by 53, 79 and 105 votes.

How many votes do each candidate gets?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

There are forty elephants and they have forty-fore heads. How can this be possible?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

I cannot talk, but I always reply when spoken to. What am I?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?