Do I believe in ghost or spirits?

I definitely believe in ghosts and spirits. To me there are a too many things that just can't be explained or coincidences that are just to perfect to be explainable. Ghost show up in folk lore across history and even in some more serious reports. I also believe that people don't just lie about random things. I have a tendency to ask people if they have any ghost stories and the ones that do have very intriguing stories to tell. What amazes me is the similarities between the stories. I don't know if that because everyone has read one ghost story and these bases theirs after that one? On the other hand it could mean that there are real and ghost have tendencies just like humans.