Answer:
These are believed to be found at the end of rainbows
I have joy in bringing two together, but darning my existence! My life hangs by a thread, filled with ups, downs and resistance!
What is the ending of all that begins?
What is it that given one, you'll have either two or none?
It goes up and down the stairs without moving.
When is it bad luck to see a black cat?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?