Meaning
A bold question mark, usually in red. It marks a question or a moment of confusion, louder and more eye-catching than ordinary punctuation.
People use it for quizzes, FAQs, polls and the classic confused reply when a message makes no sense: “Who ate my noodles❓” A lone ❓ sent as an answer simply means “what?” or “explain, please”. The outlined ❔ feels softer, and 🤔 adds a thinking face.