What is flat, usually square, and made from trees but isn't wood?
What kind of room has no doors or windows?
Its fleece is warm and wooly white. And when you lie awake at night, count it and you'll fall asleep. What is it?
If four people can repair four bicycles in four hours, how many bicycles can eight people repair in eight hours?
What’s orange and sounds like a parrot?
Why are foot injuries so serious?