Answer:
Lots of them make up a word, And lots of words are in them. It's easy when you think about it. A while ago we stamped and mailed them.
Whipping one of these out in the wrong setting is said to be terrible luck.
What has a ring but no fingers?
The land was white the seed was black. It'll take a good scholar to riddle me that.
One am I, among six others: Largest, smallest, cold, dark and two brothers
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?