Answer:
In your fire you hear me scream, creaking and whining, yet I am dead before you lay me in your hearth.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
I am never quite what I appear to be. Straight-forward I seem, but it's only skin deep. For mystery most often lies beneath my simple speech. Sharpen your wits, open your eyes, look beyond my exteriors, read me backwards, forwards, upside down. Think and answer the question...
I cannot be felt, seen or touched. Yet I can be found in everybody. My existence is always in debate. Yet I have my own style of music.
Two horses, swiftest traveling, harnessed in a pair, and grazing ever in places. Distant from them.
I am your mother's brother's only brother in law. Who am I?