The Billy Lids

My habitation's in a wood,
And I'm at anyone's command.
I often do more harm than good;
If once I get the upper hand,
I never fear a champion's frown;
Stout things I often times have done;
Brave soldiers, I can fell them down,
I never fear their sword nor gun.

A Beer Barrel.

What is greater than God,
More evil than the devil,
The poor have it,
The rich need it,
And if you eat it, you'll die?

Nothing

Lighter than what I am made of,
More of me is hidden than is seen,
I am the bane of the mariner,
A tooth within the sea.
Speak my name.

Ice

A spirited jig it dances bright,
Banishing all but darkest night.
Give it food and it will live;
Give it water and it will die.

Fire

The life I lead is mere hours or less,
I serve all my time by being consumed.
I am quickest when thin, slowest when fat,
And wind is the bane of the gift that I bring.

Candle