Question:
They could learn something--not much, perhaps, but something--from the lively, nasty online discussions they're missing.

Does it follow that "There are some online discussions they are not tuned into."?
Answer:
yes

Question:
The armor displayed here includes an outfit for disguising horses as elephants.

Does it follow that "The armor displayed here could also be used to disguise horses as elephants."?
Answer:
it is not possible to tell

Question:
Like the other riders, Stark had a band of black warpaint across his eyes.

Does it follow that "Stark had painted his face to fit in with the riders."?
Answer:
it is not possible to tell

Question:
Flanked by some of the city's most stylish fashion boutiques and shoe stores, the quarter's main street retains the commercial tradition of its medieval name, Via de' Caleiuoli (stocking- and shoe-makers).

Does it follow that "The main street has shops where you can buy shoes and stockings."?
Answer:
it is not possible to tell