I have a doubt/question. My question is whether to use "doubt" or "question" when you have some problem in understanding something. I think "I have a doubt" is Indian English as I have heard this sentences many a time here in my place. For example, after teaching a lesson, a teacher may ask "Do you have any doubt?" But I think it is the same thing as "Do you have any question?" Any suggestion would be greatly appreciated. Thank you.