Most quizzes asking for a king, you only need to give a name, not name and number (ex. George accepted for George III) so I didn't bother trying numbers for the king question. Could you change it or add a caveat to clarify the numbers are needed?
These definitions may vary across traditions, but at least in the context of Catholic monasticism, chastity only entails abstinence (also called continence) for the unmarried. So they coincide for those who have made a vow of celibacy (i.e. to remain in an unmarried state), but not in general. It would probably be fair for the quiz to accept any of these terms because they imply each other for monks and nuns, but they're not equivalent.
BTW, learned somewhere that Hamlet didn't mean a convent but a brothel when telling Ophelia to go to one. Apparently "nunnery" was used in that meaning in Shakespeare's time (perhaps as an anti-catholic insult).
That interpretation gained a brief amount of fame in the mid-20th century, but I think it has fallen out of favor more recently. But, since Shakespeare frequently used bawdy double meanings, it's possible that was his intent, and it'll give High School English teachers something to debate for many decades to come.
Maybe accept Abbot with one t?
Pedantic I know…
For some more pedantry, is Mt Athos strictly Greek?
Very interesting topic for a quiz, nonetheless. I definitely enjoyed it. :)
Also a place where nuns live is called an Abbey or a Nunnery - why specify the C-word when this is not universal?