Answer:
What freezes after it is heated up?
You're currently trying to solve one
What do you have in December that you don't have in any other month?
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 has a foot but no leg?
People take me on walks and I run and have fun. What am I?