Answer:
Ancient and majestic, great big piles of stones, Used to encase both riches and bones. Seen from certain angles, They look like big triangles.
What demands an answer, but asks no question?
A setting that proved to be deadly for Abraham Lincoln.
What is always coming but never arrives?
Sends paper without using the post office.
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.