Who am i Riddles

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

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Who has married many women but was never married?