Answer:
Don't do this in the shallow end.
What has three ways out and just one way in?
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.
What goes further the slower it goes?
My tongue hangs out as I run over fields and streets all day. I get tied up every morning and untied at night.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.