I grow for a surface, even if you cut me. I continue to grow even after death.
What is it something that you always have but you always leave behind?
I am a span of time you can always see through I am also the timepiece with the most pieces. What am I?
I speak without a mouth and hear without ears. I have nobody, but I come alive with wind. What am I?
This riddle relies on tricking you into thinking about ears and a mouth. You get a tiny hint about wind to encourage you to think broadly and avoid the literal.