@End of Interview - "Do you have any questions for me?" - finish strong!

End of interview - crucial time to impress and gain insight from the interviewer:
Connect - "how did you come to work here?"; "what do you love most about working here"?
Culture - "Who's the most successful recent hire,..and why?" "Who didn't succeed and why?"
Challenges - "Tell me about the biggest challenge the company will face this year, and how will this job help overcome it?"  "How will I measure my own performance to know I'm positively impacting this challenge?"
Close - "If there were some skills or experience you wish I had that would make me a better fit for this job, what would they be?"  "What are the next steps in the process?"