More four-year-old queries out of the blue:

How do you shrug?
What's a planet?
What does "mediocre" mean?
What things aren't precious? Are scissors precious?
What is a bond servant?
What does "injured" mean?
What is moisture?
What would we do if Amy got bitten by an alligator on her leg? Would we take her to the doctor? What would she use? A cane?
Why do some spoons have holes in them?
I know what "round" means, but what's a merry-go?? LOL!

I was answering all of these questions twice, until I discovered this child has the annoying habit of saying, "WHAT?"    Now, instead of repeating myself, I ask her, "What did I just say?" And she can always repeat the answer word for word. We'll soon be rid of that bad habit!   (Now we just need to work on some of mine...)