Answer:
In prison I'll be found. But I would never go to court Unless there's more than one
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
What is deaf, dumb, and blind, but always tells the truth?
What body part is pronounced as one letter, but written with three, only two different letters are used?
Four leaves I have.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.