Answer:
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
I don't live within a house, nor do I live without. Most will use me when they come in, and again when they go out. What am I?
There are four of us but it seems like everyone loves spades the most.
Sometimes dark and sometimes bright, I make my way among twinkling lights. Seas and oceans obey my call, yet mountains I cannot move at all. What am I?
In all the world none can compare I am a tiny weaver my deadly cloth so silky and fair.
hey are producers of pies and burgers and are great for tipping.