In Chinese, question sentences typically end with a question mark.
Tips
grammar
Chinese interrogative sentences (问句) come in several types: 是非问句 (yes/no questions with 吗), 特指问句 (wh-questions using 什么/哪/谁), 选择问句 (choice questions with 还是), and 正反问句 (affirmative-negative questions like 好不好).