Answer:
Forward I am heavy backward I am not. What am I?
Take off my skin I won't cry but you will.
The more you have me, the less you see. Shine a light on me and I flee. What am I?
I have skin, more eyes than one. I can be very nice when I am done. What am I?
I am a certain five-letter word and become shorter when you add two letters to me. What am I?
I flow from the Homerβs mouth when he sees doughnuts.