According to Osho, preparation is unnecessary; truth doesn’t need rehearsal. He only scans questions to spare the interviewer embarrassment, because he will frankly call a stupid question stupid. Real integrity is to answer what you know, and to say 'I do not know' when you don’t. Authentic presence, not prepackaged responses, is the right approach.
Don’t practice answers—just be honest: answer if you know, and say you don’t if you don’t.