Wordel acertijoMeaningthe riddle (puzzle)Part of speechnounPronunciationCourseSpanish (Spain)LessonAdjectives with infinitives (de + infinitive)Usages of el acertijoEl acertijo es muy difícil de resolver.The riddle is very difficult to solve.Tu hermano es muy ingenioso y le encantan los acertijos.Your brother is very ingenious and loves riddles.