A riddle can be existential.Logical formLearned from3 sentences. A riddle can be longstanding.Logical formLearned from3 sentences. A riddle may pertain-to a sports-celebrity.Logical formLearned from3 sentences. Paleontologists may solve a riddle.Logical formLearned from3 sentences. Some answers can be to a riddle.Logical formLearned from3 sentences. A riddle may pertain-to a game.Logical formLearned from3 sentences. A male may solve riddles.Logical formLearned from3 sentences. Riddles may pertain-to a war.Logical formLearned from3 sentences. A riddle may be posed by a twist.Logical formLearned from3 sentences. A riddle may be presented.Logical formLearned from3 sentences. A twist can be to a riddle.Logical formLearned from3 sentences. Contestants may solve riddles.Logical formLearned from3 sentences. Solutions can be to a riddle.Logical formLearned from3 sentences. Animals may become riddles.Logical formLearned from3 sentences. A riddle may pertain-to a US-president.Logical formLearned from3 sentences.