Graham put these questions together mostly on his own. When he asked me to help, I was unable to. My brain doesn't work this way.
Find the answer:
I am so hot that I could burn you. What am I?
Can I get to the sun? Yes. May I get to the sun and not burn up? No. What am I?
My surface has many rocky places. What am I?
I am a place that is very far from the sun. My orbit is sometimes in front of Neptune.
Sometimes I can get hot or cold. What am I?