The purpose of these questions may not be so much to find out the answer, but rather to observe how you cope with frustration and embarrassment.
Psychological evaluations aim to determine if candidates have a natural inclination towards police work answering the question "is it in your nature to be a police officer?"
Remember that they are simply testing your suitability and trying to elicit a range of responses from you in a very short time.
How you present will be determined by your body language, your choice of words, your level of emotion and what moods you express.
There is no requirement to have a prepared response to these questions. However, if you have at least thought about these sort of things beforehand, you will be better prepared to confidently and competently answer such topics under the pressure of a formal interview.
