What Am I Riddles

Riddle (medium)

Question: What white coat lights up and is hot to the touch?

Riddle (medium)

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

... (medium)

Question: What cannot be seen or felt, but can only be broken by voice?

What is it? (medium)

Question: Tear one off and scratch my head. What once was red is black instead. What am I?

riddles (medium)

Question: What is big, has 4 feet, and can fly?