Answer:
What has many keys but can't open a single lock?
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. What am I?
I'm sometimes white and always wrong. I can break a heart and hurt the strong. I can build love and tear it down. I can make a smile, but more often bring a frown. What am I?
Keep doing me to avoid lens dryness
You bind me and I walk. You loosen me and I stop. What am I?
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic