Maybe stop thinking about what the reason is why you've been asked the question and just be honest...... you might think you can give the answers "they" are looking for but on the other hand you could be trying too hard..... in my view honesty is the best option. With many similar questions its too easy to give 2 totally different answers to almost the same question. If on the other hand you're being honest, you will at least be consistant. It's not rocket science just basic psychology! "They" ask these things for a reason and it might not be to get the answers someone on here thinks is right!
This might not be what you want to hear but trying to beat the system might not be an option when you're talking about personality traits! Most people who have done any post school study are made aware that body language and personality are very difficult things to hide. When I applied I did everything in my power to be myself.
