Other forms: questions; questioned; questioning
"How am I doing so far?" "What time is it?" These are questions, in other words — sentences designed to get information from someone. Do you understand this definition?
Question can also mean a doubt about the truth of something. If your college professor tells you he has a question about the originality of your term paper, for example, it means you might be getting busted for plagiarism. The act of raising such a doubt is also "to question" something. Finally, a question can be something that depends on a particular condition: "Reading dictionaries is a question of interest and intellect." There's no question you have both, clearly.