aha, quite an interesting topic indeed.

one that intrigued me is the poltergeist.
i'm too lazy to type out so i'm copy pasting from wikipedia.

Poltergeist (from German poltern, meaning to rumble or make noise, and Geist, meaning "ghost" or "spirit") denotes an invisible spirit or ghost that manifests itself by moving and influencing objects, generally in a particular location such as a house or room or place within a house. Poltergeists have been reported in many cultures, including India (where they are known as a Mumai), the United States, England, Japan and Brazil. Each has its own name for the phenomenon, while the features of the phenomenon are generally the same everywhere (rapping noises, object movement etc). This commonality does not prove that the phenomenon is real, but rather that it is a common experience and may be due to a common psychosis. In addition, poltergeists, like ghosts in general, are generally considered to be pseudoscience, and there is no credible scientific evidence for their existenc