Answer:
I always have to work with something in my eye. What am I?
I am black when you buy me, red when you use me. When I turn white, you know it's time to throw me away. 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.
I am a box who holds keys but not locks. With the right combination I may unlock your soul
In Paris but not in France the thinnest of its siblings.
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.