Well, it really depends on the individual. Some people might find them just moderately scary, while others could be completely petrified. It all comes down to personal phobias and sensitivity to horror elements.
Yes, there is one where a person keeps getting late - night telebone calls. Every time they pick up, there's just heavy breathing on the other end. It gets scarier as it continues night after night, and the person starts to feel like they're being targeted.
One classic is 'The Tell - Tale Heart'. It's about a man who is driven mad by an old man's vulture - like eye. He kills the old man and hides his body under the floorboards, but then he starts to hear the heartbeat of the dead man, which could be his guilty conscience. Another is 'The Monkey's Paw'. A family gets a magical paw that can grant wishes, but every wish comes with a horrible, unforeseen consequence.
There's 'The Legend of Sleepy Hollow' by Washington Irving. Ichabod Crane, a superstitious schoolteacher, has a run - in with the Headless Horseman in the spooky town of Sleepy Hollow. The Horseman is said to be a Hessian soldier who lost his head during the Revolutionary War. Ichabod is a rather comical character, which makes his terrifying encounter with the ghostly figure all the more interesting. The story is full of descriptions of the dark and mysterious woods around Sleepy Hollow, adding to the overall sense of dread.
One classic element is a spooky setting, like an old, abandoned house. The creaking floors and peeling wallpaper can create an instant sense of unease.
One classic scary story is 'The Tell - Tale Heart' by Edgar Allan Poe. In this short story, the narrator is haunted by the 'evil eye' of an old man. The narrator's obsession and his growing madness as he plots and then executes the murder of the old man, all while being tormented by the sound of the old man's still - beating heart, is truly terrifying. The way Poe builds the tension and the sense of the narrator's unhinged mental state makes it a classic in the horror genre.
Dark and isolated settings are common. Like in many stories, old mansions or graveyards are often used. For example, in 'The Turn of the Screw', the large, remote estate creates an immediate sense of unease. Another element is the presence of a tragic past. In 'The Canterville Ghost', Sir Simon's past misdeeds led to his current ghostly state. Unsettling apparitions also play a big role. In 'The Legend of Sleepy Hollow', the Headless Horseman is a very spooky apparition that haunts Ichabod Crane.
Well, a classic scary story usually has a creepy atmosphere. This can be created by things like howling wind or creaking floorboards. There's often a victim or a group of victims who are in danger. Take 'Dracula' for instance. The victims are in constant threat from the vampire. And then there's the element of the unexpected. A sudden appearance of something terrifying can really make a story scary.