Answer:
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
I had a bright start, but I couldn't take the pressure. I consume everything, yet I don't eat anything. What am I?
A caribbean shape that makes ships disappear.
I am a key that is playful. What am I?
I can be winding and I can be straight. I can be smooth and I can be rough. Sometimes both. I start out black but fade to brown. My favorite colors are yellow and white and I love stripes and dashed lines.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.