Answer:
Of these things - I have two. One for me - and one for you. And when you ask about the price I simply smile and nod twice.
I pass before the sun, yet make no shadow. I'm all around you, but you cannot see me. What am I?
A young man wants to have me but when he has me, he no longer wants me. What am I?
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
The profession of Jimi Hendrix and Eric Clapton