Can You Solve The Dark Coin Riddle?
You heard the travelers’ tales, you followed the maps, and now, you’ve finally located the dungeon containing a stash of ancient coins. The good news: the wizard who owns the castle has generously agreed to let you have the coins. The bad news: he’s not quite as generous about letting you leave the dungeon … unless you solve his puzzle. Can you solve it and get out alive? Lisa Winer and TED-Ed show you how.
