* The complex instructions perplexed the students, leaving them unsure of how to proceed.
* The sudden change in weather perplexed the hikers, who were unprepared for the sudden downpour.
* The detective was perplexed by the lack of evidence in the case, leaving him with more questions than answers.
* Her contradictory statements perplexed everyone in the room, making it difficult to understand her true intentions.
* The professor's lecture on quantum mechanics perplexed even the most advanced students in the class.