Answer:
How many bricks does it take to complete a building made of brick?
Once you have it, you want to share it. Once you share it, you donβt have it. What is it?
One more than a duet.
I occur twice in eternity. And I'm always within sight.
What is it that you must give before you can keep it
I am a room that has a roof but no walls. What am I?