M1 here. I used to have those "actual problem" questions for my interviewee, but my parent company's HR said we'd have to stick to questions that would yield better "yes/no" on a candidate than "how they think". In the end we were forced to use LC as a source for questions.
groby_b|1 year ago
(You can approach "how they think" as a question with strict rubrics fwiw, but it's a somewhat uphill battle. And not one you can win as an M1, usually)