Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-whitewater-a88714d43a6a

What does a pillow usually signal about a rock?

That the rock is not undercut.

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  1. That the rock is made of wood
  2. That the rock is safe to stand on
  3. That the rock is not undercut ✔

Why: Pillows normally signal that a rock is not undercut, though undercuts sometimes have pillows too.

Huh, didn't know that: Pillows normally signal that a rock is not undercut, though undercuts sometimes have pillows too.

The dad joke
That pillow is a good sign.
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References

Answer: That the rock is not undercut. Pillows normally signal that a rock is not undercut, though undercuts sometimes have pillows too.

  1. Whitewater en.wikipedia.org/wiki/Whitewater
    Pillows normally signal that a rock is not undercut.
    Checked 2026-11-07.

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