In an new video Marcus Buckingham mentions some nice solution-focused questions:
"If your child breaks the law these days, in the US anyway, he or she will likely be given an strengths based assessment for juvenile justice where there will be asked strengths based questions like Have you made any positive changes in the past? If you would make these changes today, who would be the first to notice these changes? I mean good strengths based questions." (see video here)
Update: By the way, I think Buckingham misses the point by calling these questions 'strengths based'. Here is why.