Answer:
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
I stink in living but when dead smells good.
What has a neck but no head?
What did the piece of wood say when he saw the screwdriver and screws approaching?