Answer:
I am the noblest musical instrument
I hold two people together but touch only one.
I am as hard as metal, yet as flimsy as glass. I shine like a star, yet I am only a rock. What am I?
It flies around all day but never goes anywhere? What is it?
You have to travel far before you turn it over. What is it?
I flow from the Homerβs mouth when he sees doughnuts.