Every day the widget surfaces a riddle from a CSV-backed library that mixes classics with condensed TED-Ed favorites, with a Reveal button that toggles the answer. Revealing or ticking the Known box drops a riddle from rotation; prev / next / refresh / daily all walk only the unsolved subset.
Switch to manual mode to pin one riddle, or keep the default daily rotation so two embeds with the same ns always show the same riddle on the same day. When the whole library is solved, the card flips to a Reset overlay that wipes the namespace and starts fresh.
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/embed.Embed link.