It depends on the specific ghost story series you're referring to. Different series have different episode counts. You might want to search on dedicated entertainment platforms or fan forums to get the exact number.
I don't have the exact figure for the number of episodes in Ghost Stories anime off the top of my head. But a quick online search or referring to anime-related websites should give you the precise number.
There was an episode where a singer shared her experience in a haunted castle. She described seeing strange apparitions and hearing unexplained noises. The way she told the story, with all the details about the cold spots in the castle and the feeling of being watched, made it very engaging. Another great episode was about a comedian who had a spooky encounter during a stay at an old inn. His humorous take on the really terrifying experience added a unique flavor to the story.