I didn't imagine question marks (or exclamation marks too?) could be placed anywhere but at the end of a sentence. The Armenian syntax makes a lot of sense, I feel smarter to know this, than!ks :)
Imagine saying "When, tomorrow?"
In most latin-based languages, you'd have only one question mark at the end, although you raise your pitch twice (on "When", and on "tomorrow"). In Armenian it would look like -- "Whe՞n, tomo՞rrow."
Exclamation mark follows the same logic, and looks like: ՜
"Hello!" = "Ողջո՜ւյն"