If you design a puzzle that only one member of the party can possibly solve, you can expect that player to spend the entire time aimlessly rolling dice or eating Funyuns while the rest of the party comes up with alternate solutions far more elaborate and worthwhile than yours.
How do elves have their own constellations, are they from another planet?
the same way the native americans, norse, and austrailian aboriginals had different constillations, in the case of the native americans and norse they had different legends… the aboriginals were on the other side of the world and saw different stars