Asking questions, and the art of asking the best possible questions, is critically important for all research. However, not all research starts with or is driven by a research question. Some will insist that a question is essential, others will say they are secondary or operate indirectly; supervisors will vary on this point.
Most often, it is useful to articulate questions that are relevant and useful for guiding the research, knowing that these are provisional and are likely to change.
Juliana Preston examination – “entertaining the research question” – @ 5:30