Answer:
What has three feet but no arms or legs?
What doesn't get any wetter, no matter how much rain falls on it?
I can run but not walk. Wherever I go, thought follows close behind.
They can float and tickle, but their sound is rarely heard unless you're a pillow or bird. What are they?
In we go, out we go. All around and in a row. Always, always steady flow. When we'll stop, you'll never known. In we go, out we go.
What is so fragile that saying its name breaks it?