just some things to help the mind - all of ours...this is for fun; nobody's answers will be graded or checked against professional publications.
# 1.
Many of us can tell where someone comes from, just from hearing what words they use in a given sentence.
If you heard one of this pair, where would you assume the speaker was from?
a) "And out of the four of them, none of them were under eighty years of age."
b) "And out of the four of them, none of them were under eighty years in age."
is there another way? some other word that you've heard used where the bolded and underlined words are? (for the purposes of "years old" doesn't count)
# 2.
Many languages have a word for the people who are distinctly not them, the ones who don't speak that language.
ie, Japan famously has gaijin; Hebrew or Yiddish have goyim; Classical Greek had barbaroi from which we get barbarian. Can you think of more?
As far as I know, English doesn't have a word for that sort of thing...other than "foreigner" (which I think was picked up from another language) and a spitting-out of "them!"
...I'm happy to be shown otherwise, though.