What are some elements that make funny creepy twin stories so interesting?

Well, it's the innocence of the kids combined with the creepy elements. Kids don't really understand the full meaning of what they are experiencing. So when they talk about something spooky, it has a different kind of charm. For instance, a kid might befriend a 'ghost' without being afraid. It's this naivete that draws people in. And also, the contrast between the normal world of adults and the strange world the kids seem to be in. We as adults try to rationalize everything, but kids just accept the strange things they see or feel.

The moral lessons. Many old witch stories have a moral at the end. For example, in some stories, those who are greedy or disrespectful towards the witches face a terrible fate. This gives the stories a deeper meaning and makes them more than just a simple scare. It also makes people think about their own actions and how they should behave in the face of the unknown.

The unexpected. In a short creepy Christmas Eve story, you expect Christmas cheer, but instead you get something terrifying. For instance, the carolers expecting a warm welcome but finding a haunted house. It plays on our expectations and turns them upside down. This element of surprise hooks the reader and makes them want to keep reading to find out what else could possibly go wrong.

Surprise elements can do that. For example, if a character is expecting one thing and then something completely unexpected and a bit spooky happens. Like in a story where a person is waiting for their friend at a café, and instead of their friend, a small, pale child with no expression appears and starts whispering strange things, that's unexpected and creepy but also has a funny - in a dark way - aspect to it.

The combination of spooky settings and silly explanations. Like a spooky old house where the 'haunting' is just the old floorboards creaking because of a mouse. The contrast between the seemingly scary situation and the mundane cause is what makes it both creepy and funny.

Mixing the ordinary with the spooky. Like a mouse making noises in an old, supposedly haunted building. You expect a ghost but it's just a little mouse. This contrast creates that creepy funny feel.

The unexpectedness. For example, when a couple conceives in a situation they least expected, like on a spontaneous road trip. It adds an element of surprise.

Often, the irony in these stories makes them interesting. For example, the actor who died on stage while performing a death scene. He was supposed to be faking death but ended up really dying. This contrast between the pretense and the reality creates a sense of dark humor. Another aspect is the human folly involved. People doing silly things that lead to their demise, like the man trying to jump a tiny fence and failing miserably. It makes us reflect on how our own overconfidence or carelessness can have extreme consequences, all while having a bit of a laugh about it.

The contrast between the romantic and the comical makes funny love stories interesting. Think about a couple on a romantic dinner date, and then one of them accidentally spills food all over their nice clothes. It's a moment that combines the two aspects. Also, the shared inside jokes that develop from these funny situations create a unique bond between the couple, which is really appealing when told as a story.

The unexpectedness. When someone forgets something really basic like their keys or wallet at home, it's so out of the ordinary for them that it makes it funny.