Answer:
I have a straight back and sharp teeth to cut objects.
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'm tall when I'm young and short when I'm old. What am I?
I can be red blue purple and green. No one can reach me not even the queen.
I mirror your actions.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?