This is an interesting set of topics! They are sufficiently vague to allow you some good amount of latitude in how to understand them.
Topic 1: The Meaning of Me - this is asking you to write something about how you view the world and your place in it. You could write about your life goals and how you plan to achieve them.
Topic 2: Paved or Unpaved Ways - This seems to be asking you to compare and contrast alternative ways or paths in life, one which would be more common and the other being more uncommon and perhaps off the beaten track.
Topic 3: Because This is What Matters - This is an invitation to take an issue or concern that you have (political, religious, philosophical, ethical or whatever), and write about why it should be important to you and others.
Topic 4: The Bravest Place on Earth - I take this as inviting you to write about a place where the people must be courageous in order to be able to prosper there. Or you could take it as a starting point for describing something more symbolic, such as someone you know who was a courageous person.
That's my take on it. Seems like it might be fun to write about these topics. Open-ended questions like these can make it seem hard to figure out because they allow a lot more leeway that you perhaps are used to. In your original question, you seemed to indicate that the contest wanted a "short story", which implies fiction. If that is the case, it still should not be hard to do -- just write yourself or your views into your story! Good luck with the project!