I think trying to bluff your way through one of those is not going to work. All it takes is one slip-up where two questions should be answered the same way but aren't, and they could conclude you're lying. And lying is the kiss of death.
Plus, the so-called "right" answers aren't always right. Different employers look for different things. And even for one employer, what they want for one job isn't necessary what they want in another.
What do you do when you lie your way through, then after you start the job it's obvious you aren't the type of person your test indicated? What kind of impression will that make on the employer? Are you going to change your entire personality at work to match your test answers?
One the one we give, one question asks if you've ever stolen anything from a job. 99% of the people answer no. Then in the interview we bring that answer up and say, "You've never taken anything? Noe even a pencil? Even by accident?" At that point most people say "Oh, by accident, yes." Guess what? The HR guy concludes that person lied on the test. It may not eliminate someone automatically, but it's factored in.
Our HR guy wants to see "yes" as the answer, then an explanation of what happened. He's perfectly OK with someone saying they've left pens and pencils in their pockets and didn't bother to bring them back, because that's believable. Other people want to see "no". From what I hear, there's no "right" answers so just answer honestly. You can't tell how people are going to interpret the results anyway.
Of course, there are certain questions to which the "right" answer is absolutely crystal-clear. I'm not talking about those.