Answer:
What is up thatโs also down? Whatโs a smile and a frown?
I am black when I am clean and white when I am dirty?
Come up and let us go. Go down and here we stay
When Iโm metal or wood, I help you get home. When Iโm flesh and Iโm blood, In the darkness I roam.
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
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