Answer:
I am the heart that does not beat. If cut, I bleed without blood. I can fly, but have no wings. I can float, but have no fins. I can sing, but have no mouth.
I grow where no flower grows, where no light touches the walls, up or down, that I don't care, was here before people were.
What weaves webs as they grow?
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
Long and think, red within, with a nail at the end.
What sphinxes employ and players enjoy.
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?