Ghosts as in the spirits of dead people? Then no. But Jinn are real. Jinns are creatures just like humans and animals, except God has given them special powers. They can only be seen by some people. They can also take the form of an animal or another human. They can also travel from one country to another in just a few minutes. People who say they have seen ghosts or the spirits of dead people have actually just seen a Jinn. There are good and bad in Jinns as well. The bad ones are Shatan.
I think so, I have had a few experiences and one was at my daughters college. I was sitting in the back row in the auditorium and I felt someone move my hair, I turned around and there was no one there. I found out later that one of the buildings next door was a funeral home at one time.
Ghosts are said to be a person who has died. Not real. Spirits are not the same, spirits come from God, or there are evil spirits that come from Satan. We do not wage war against mere flesh and blood but against principalities, powers, and darkness in high places. Outside of our realm of understanding.