⟩ Tell us what are the main things HR does to assist the department I would be working for?
Similar to the first question on this list, this question shows you know HR is more than just the company's first line of defense during the recruitment process.
Take your phone screening as an opportunity to become acquainted with the human resources department and find out how you'd interact with them on a regular basis from your department. It's a friendly question and one that shows your interest in how the whole company operates -- not just your own team.