Answer:
I occur twice in eternity. And I'm always within sight.
They come in many varieties: Red, Black, Dead, and Caspian to name a few.
Pointing North, South, East, and West it saves the lost and helps the rest. What is it?
What gets colder as it warms up?
What starts with a P, ends with an E and has a million letters in it?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.