> It's not a lie because nobody expects the question to be answered with accuracy.

Well, if Michael Corleone takes the stand to affirm that he doesn't know what anyone is talking about, he is not and has never been a mob boss, and in fact no one in his family has ever been a mob boss, that won't surprise anyone (they might be surprised that he agreed to testify in the first place, but no one will be surprised by what he says). Can we conclude that he isn't lying?