Answer:
I have a tongue, but cannot speak. I have a bed but cannot sleep. I have four legs but cannot walk. Yet I move as you do. What am I?
Things here are usually tagged with red stickers.
You can catch me but cannot throw me. What am I?
What is always coming but never arrives?
What gets sharper the more you use it?
What never gets any wetter no matter how hard it rains?