This is true
Q: What can you bring to this organisation
A: Ive got some teatowels at home I havent used
Classic
Many years ago, I knew a lad that secured a job with an answer like that.
Q: What can you bring to the company that no other candidate can?
A: A pink Triumph Herald V8 Convertible.
These answers are handy as much as they are risky - as they do make you memorable when there are many candidates....they could also be mistaken for sarcasm...you need to be able to read your interviewers well to try this.
I think some weird questions are thrown in to see how you handle suprising questions or confrontations. Again, it depends on the job you are going for. Some may add a slightly offensive question when interviewing for a environment that has alot of banter - this serves to test your temperament.
I think throwing in honesty, reliability, integrity questions as well are good - but don't make them too obvious. The wallet in the street will just be too glarily obvious to get an honest or accurate answer. You could ask if they had perks in their previous jobs as a way of twisting it.
Employers are also very shy of considering those that have run their own business. Firstly in case they outshine the employer, and as they have the knowledge to start a conflicting venture. But on the other hand, those that have been self employed as usually quite company minded, understand the ethics and will work along quite happily rather than slack off at the given chance. They are less likely to call in sick and work efficiently, customer service skills are good as they are used to it. They will be more confident - and it is up to you to outweigh the strengths with the threats.....but it does not make them less of a candidate. It does make a difference however, if you are looking for point and shoot staff with no initiative - as these will be less than ideal.