Do you believe in ghost

Do you believe in ghosts?
If yes then you're not alone.
The idea that the dead remain with us in spirit is an ancient one, appearing in countless stories, from the Bible to "Macbeth." Belief in ghosts is part of a larger web of related paranormal beliefs, including near-death experience, life after death, and spirit communication. People have tried to (or claimed to) communicate with spirits for ages.
science and logic of ghosts
Biggest difficulty in scientifically evaluating ghosts is that a surprisingly wide variety of phenomenon are attributed to ghosts, from a door closing on its own, to missing keys, to a cold area in a hallway, to a vision of a dead relative.
Personal experience is one thing and scientific evidence is another thing. Part of the difficulty in investigating ghosts is that there is not one universally agreed-upon definition of what a ghost is. Some believe that they are spirits of the dead who for whatever reason get "lost" on their way to The Other Side; others claim that ghosts are instead telepathic entities projected into the world from our minds.
If ghosts are the spirits of those whose deaths were unvented, why are there unsolved murders, since ghosts are said to communicate with psychic mediums, and should be able to identify their killers for the police. And so on- just about any claim about ghosts raises logical reasons to doubt it.
Some researchers claim that the reason ghosts haven't been proven to exist is that we simply don't have the right technology to find or detect the spirit world. But this, too, can't be correct: Either ghosts exist and appear in our ordinary physical world.
If you understand basic physics the answer is very simple, and not at all mysterious. After a person dies, the energy in his or her body goes where all organisms' energy goes after death: into the environment. The energy is released in the form of heat, and the body is transferred into the animals that eat us (i.e., wild animals if we are left unburied, or worms and bacteria if we are interred), and the plants that absorb us. There is no bodily "energy" that survives death to be detected with popular ghost-hunting devices.

Conclusion
In the end the evidence for ghosts is not technically right and evidence are decade ago, or a century ago. There are two possible reasons for the failure of ghost hunters to find good evidence. The first is that ghosts don't exist, and that reports of ghosts can be explained by psychology, misperceptions, mistakes and hoaxes. The second option is that ghosts do exist, but that ghost hunters are simply incompetent and need to bring more science to the search.
Ultimately, ghost hunting is not about the evidence (if it was, the search would have been abandoned long ago). Instead, it's about having fun with friends, telling stories, and the enjoyment of pretending they are searching the edge of the unknown. After all, everyone loves a good ghost story.so what do you think about the topic?? They are real or just they are not more then stories or this topic still need more research?