sometimes there are answers but no questions

sometimes there are answers but no questions, so we have stumbled upon the answers but don’t know the questions, we haven’t even formulated the questions. Sometimes we don’t even know how to formulate the questions, like we ask, Why there are so many kind of particles, its not a good question. I can ask  why there are so many different kind of trees, there are as many kind as there are, there is no bound to that, there is no bound to how many different kind of particles can be there. They are there and they show up. Of-course the fortunate thing is we can classify them. Why there is only 4 kind of fundamental forces, nobody asked if there are more that we haven’t discovered yet, may be with the unset of more smashing power of LHC, newer   discoveries such as this will come up.