Baking parchment is also known as greaseproof paper. It is available in most supermarkets.
Parchment is dried bark.
No, it will burn. You can use white copy paper. It will tent to stick to the product, but will keep it from sticking to the pan. It will pull off of the product without damaging it.
No! Do NOT use wax paper, a fire could start in your oven!
Parchment is not paper, it is made of calf skin.