1. Except some alternate spellings, especially since many of these are not even standard.
2. Narmer and Menes are often considered to be the same person - and the clues indicate that too, So why ask for the as separate people?
3. Some of the people were never Pharaoh (Kiya, Arisnoe), and there exists many other famous Pharoahs who actually meet the title (Pepi II, Thutmose III, Djoser, Khufu, Khafre).