Answer:
I move without wings Between silken string I leave as you find My substance behind.
I am a creature with a “tight” name.
When I live I cry if you don't kill me I'll die.
I have branches but no fruit trunk or leaves. What am I?
I rise and fall no matter what, only at finals rest do I not budge. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.