Answer:
What contains zero calories, but if you consume it, you will probably gain weight?
I am so simple that I can only point. Yet I guide men all over the world.
What loses its head in the morning and gets it back at night?
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
Steals an event or even a mood. Reveals the truth or shatters it.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.