Answer:
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
Of no use to one, Bliss to two. Men lie for it. The baby’s right,
I open wide and tight I shut, Sharp am I and paper-cut fingers too, so do take care, I'm good and bad, so best beware.
Four of us are in your field, But our differences keep us at yield, First, a one that is no fool, Though he resembles a gardener’s tool, Next, one difficult to split in two, And a girl once had one as big as her shoe, Then, to the mind, one’s a lovely bonder, And truancy makes it grow fonder, Last, a stem connecting dots of three
What an fill a room but takes up no space?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?