Answer:
I go around in circles, but always straight ahead. Never complain, no matter where I am led. What am I?
Who keeps the ocean clean?
What is easy to get into, but hard to get out of?
Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed.
I am heavy forward but backward I'm not.
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk