Answer:
I am just two and two. I am hot. I am cold. I am the parent of numbers that cannot be told. I am a gift beyond measure, a matter of course. What am I?
In your fire you hear me scream creaking and whining yet I am dead before you lay me in your hearth.
You can catch me but cannot throw me.
I am so delicious that I require a house to contain me.
I am not very commonly found! Only in some rainforest! I have an odd number of toes! I'm very lazy and hang upside down! What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.