I have to think of situations that asking a question in my introductory paragraph wouldn't work but I can't think of any, any ideas?

Answer 1

Only ask a question that the audience thinks it can answer. However, it should be a question with a surprising answer. It could also be a question that sparks interest.

Answer 2

It is usually not a good idea to ask a question in an introductory paragraph, particularly if you don't address a possible answer in the paper. Generally questions do well on a persuasive paper because you will probably answer the question (albeit with your own opinion) later in the paragraph or the paper. Questions are generally not a good idea for expository writing, because it is a story told from your perspective and questions addressing the reader is weird.