Answer:
What do you get when you cross a cow with a trampoline?
You use me between your head and your toes the more I work the thinner I grow.
Who keeps the ocean clean?
I have six faces but not even one body connected, 21 eyes in total but cannot see. What am I?
I am so delicious that I require a house to contain me.
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.