When it comes to asking questions that make people think, there are many synonyms to choose from. One option is to ask a "penetrating question," which implies that the inquiry delves deeply into a topic and gets to the heart of the matter. Another term that can be used is a "probing question," which suggests that the inquiry is designed to elicit more information or understanding. A "mind-bending question" indicates that the query is meant to challenge conventional thinking and encourage creativity. Finally, "intellectual questions" are philosophical, abstract, or theoretical queries that inspire reflection and contemplation. No matter which synonym you choose, a thought-provoking question is a valuable tool for engaging others and expanding your own knowledge and insights.