Answer:
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
What is the word that even in plain sight remains hidden?
I am the noblest musical instrument
I lose my head in the morning and regain it back at night. What am I?
What can you catch but not throw?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.