Very good but could do with more time. Predictive text makes all these names a nightmare to type, especially if the correct answer requires more than one word.
Nice quiz. Just for the "Large region in northern Middle-earth" question, even knowing everything about the Lord of the Rings doesn't allow one to guess this one without multiple different tries, perhaps you could give a clue. The answer could also be Arnor, Eriador, Rhun, dozens of other places and even Beleriand. Please add more clues so it is possible to guess that the answer is Rhovanion.
It's a chain quiz, so the answer would need to start with R and end with N. That's a pretty solid clue right there, although admittedly it doesn't help if you didn't get the adjacent answers already.