🌐EnglishEnglishPortuguêsالعربية中文EntityQ7797948· pop 6· linked from 4 articlesthree cups problemmathematical puzzleAvailable in 6 languages中文العربيةMacedonianUkrainianzh_yuevia Wikidata sitelinks · CC0ConnectionsInternational Standard Book NumberEntitystage magicEntityCategoriesMagic tricksUnsolvable puzzles