You may as well

prepare handouts containing the predetermined questions and answers, and distribute them before anyone even sits down. That seems to fit your criterion just as well, and wouldn't be fraudulent at all.

Alternatively, you could do a Putin, have a secretary record the questions, and schedule a follow-up session a couple of days hence, during which answers could be given, provided the questions were deemed worthy of an answer.

Or, hell, fuck it: Just put her behind a $2,700/question paywall.

Crimony.