Usage of 何 in Buddhist Hybrid Chinese This is from T263, the Lotus Sūtra, eight groups of 4 characters:

如來所詔 常以知時 為其眾生 而行智慧
||  以何方便 而受道法 何因令獲 從佛經教

Does 何, particularly in 以何方便, mean that there is a question being asked here? Or is it simply the word "which"? How does 以 interact with 何 here?
"以何" was used in classical chinese roughly as "by (以) which / what (何)".

eg 禮記﹒問喪


  或問曰﹒杖者﹒以何為也


三國志﹒董昭傳


  問﹒禦以何術


though, it's not 100%, most of this usages were questions.

the verses "以何方便　而受道法　何因令獲　從佛經教" is from 正法華經　卷第七

http://tripitaka.cbeta.org/mobile/index.php?index=T09n0263_007

in which 方便 is upāya-mukha (方便門), since there're many ways to learn buddhism, "以何方便" in this context means by (以) which [one] (何)  of the ways (方便).

about the question mark, it depends on the version of translation. here's one that text are punctuated with dot only.