Answer:
What has a thumb and four fingers but is not alive?
Every night I'm told what to do and each morning I do what I'm told. But I still don't escape your scold
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.
I am what bring things together. Without me everything you see would be a total mass or debris everywhere.
I am a cave full of bones and the house of a worm.