A better question (and in my opinion the only question that works) is, “How can I do better?” Variations based on circumstances are okay, such as “What can I do to be a better partner at home?” or “What can I do to be a better leader of the group?” You get the idea. Pure issue-free feedback that makes change possible has to 1) solicit advice rather than criticism, b) be directed towards the future, and c) be couched in a way that suggests you are in fact going to try to do better.
Finally, when you get the answer, when someone gives you the gift of what you can do to be better, don’t respond with your opinion of their advice. It will just sound like denial, rationalization, and objection. Treat every piece of advice as a gift, a compliment, and simply say, “Thank you.” No one expects you to act on every piece of advice. Just act on advice that makes sense to you. The people around you will be thrilled!