Answer:
I am a tale in childrens' minds. Though an illusion, I occur every night. I give them a fantasy, I give them a fright. What am I?
The last man on Earth received a phone call, who was the caller?
My snake-like body cracks and burns. I cause pain but pleasure too. What am I?
I am the word that is always spelled correctly by everyone.
I may only be given but never bought. Sinners seek me but saints do not. (one word).
The more of me you take, the more I appear behind you. What am I?