There are no 'answers' as such. The ICE require you to write an essay on a particular topic. The topics/questions set are based on your own review submission so are pretty much tailored to your experience.
They used to have a standard list of topics which could be covered but they no longer do this.
I would suggest contacting your local ICE region and asking if there are any essay groups being run. The groups tend to help you in planning and constructing the essay, but the actual content will be down to you.