Killing Xanathar

Once you head into the cave, and you smell what can be described as frozen spaghetti. A tall skeleton wearing a red scarf appears from the shadows as if he has been waiting there for decades. "Nyeh heh heh! If you want to get past me, you must answer my questions three!" exclaimed the skeleton with the confidence of someone who's been saying that for years to himself, "Well, it's really only one question, but it's a good one! Almost as good my spaghetti!" Do you listen to the skeleton?