Answer:
You can read it both ways, I wearΝΎ One way it's a number, reversed a snare.
What lies in a tunnel of darkness. That can only attack when pulled back?
Bright as diamonds, Loud as thunder, Never still, A thing of wonder.
In marble halls as white as milk, lined with a skin as soft as silk. Within a fountain crystal-clear. A golden apple doth appear. No doors there are to this stronghold, yet thieves break in and steal the gold.
At the sound of me, one may dream or stamp their feet, At the sound of me, one may laugh or sometimes weep.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?