Can a survey be just one question?
The one-question survey is simply a survey with just a single question. It could be any form of question, from dichotomous (yes/no) to multiple choice and open-ended. One of the obvious limitations of one question surveys is that organizations tend to want to know many things about their customers.
What is a better way to ask a question?
Use “can,” “could,” or “would” when you make a request. Leading right away with a question word, like “who,” “what,” “why,” “where,” or “how,” might make your question sound rude or demanding. Ease into the question with one of these words instead so it sounds a little more polite when you're asking for information.