Answer:
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.
In your fire you hear me scream creaking and whining yet I am dead before you lay me in your hearth.
I can swim but never get wet. I can run but never get tired. I follow you everywhere but never say a word.
I give people a huge fright, but at the end I'm sweet. I normally celebrate at night, when there's less heat. What am I?
Why is leather armor best for sneaking?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.