What Am I Riddles

Question: What smells better than it tastes?

Question: I am around everything, everything that lives because of me. What am I?

Question: I float when I am born, lay down when I am alive, and run when I am dead. What am I?

Question: A powerful spell, the naive knows it well; one cast at an affair for your most popular gown. No sticks, no stones, a mage sans tomes, a fight, no toil but it still breaks you down.

Question: Old mother twitchet had one eye and a tail that she let fly and every time she went through a trap she left a bit of her tail in the trap.