Impossible riddles have practical natural-world solutions.

Evidence

Not long after, a terrible riddle fell upon the land: a neighboring khan threatened war unless three impossible questions were answered — to make a rope of ashes, to thread a winding seashell, to tell which end of a cut log was the root. The proud khan and all his young warriors were helpless; no one knew. In despair the young man crept down to his hidden mother. The old woman smiled. ‘Easy,’ she said. ‘Soak a rope in salt and burn it — the ash holds its shape. Smear honey through the shell and let an ant draw the thread. Float the log — the root end sits lower in the water.’ — , A Year of World Stories, 11584

Categorization

• QUESTION: These clever solutions (ash rope, ant threading, log-floats) are worth digging into as genuine empirical folk knowledge — could be a short piece on how pre-literate peoples encoded materials science in tales.
• SEED: An essay angle: ‘the folk science hiding inside impossible riddles’ — what physical chemistry the ash-rope and ant-threading tricks actually demonstrate.