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

A father's child, a mother's child, yet no one's son.

Who am I?

What is full of holes but still holds water?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?