As a potential employer, I'm happy to help them learn, but I'm not going to spoon-feed them. If someone is profoundly incurious, maybe they'd be better off working somewhere else. Or in another career field.
Good to go with open ended questions. It's hard for candidates to memorize answers.
Sadly i see lots of these kinds of idiotic strategies on their part :-)
When i started my first company in 95 or thereabouts, i remember a person who just would not open his mouth during the entire interview. I didn't know what to make of him. I then asked my receptionist to talk to him, find out if i was being too rough or intimidating etc.
Turns out that the interviewee did not trust his own command over english enough to answer back.
Once i learned that, i just handed him a free PC, told him to try writing whatever program he wanted in the next few hours and did not set any time limits.
When i came back after lunch, i saw that he had written a complete game ( This was in the DOS days where writing a game was really difficult since there were no high-level game engines around )
The guy eventually turned out to be one of my best programmer.