Answer:
Do what he says and you'll be fine, don't and you lose the game.
What loses its head in the morning and gets it back at night?
I'm tall in the morning and short in the noon. I disappear at night but I will be back soon.
I have four wings but cannot fly. I never laugh and never cry. On the same spot always found, toiling away with little sound.
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?