Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

[EX Q]: Statistics show that one out of every ____ people has a mental illness.
[EX A]: four

[EX Q]: Nymphs go through ____ instars and a pupa stage before reaching adulthood.
[EX A]: three

[EX Q]: R is an average of the color rendering ability of ____ or more specific colors.
[EX A]:
eight