The second one: What rooms (living room, bathroom, dormitories, etc.) do houses have in your country? The word which is used when the alternatives are mentioned. Example: Which of the following rooms do houses have in your country: living room, bathroom or dormitories?

numero dos es perfecto pero numero uno es mal.

Hello It is not so clear what you mean with your sentence , because both seem to be formulated incorrectly .What do u mean by what rooms your houses have ?? you are talking about the size or description of the rooms ?? Maybe you could say : "How do room in houses in your country look like ?"