You're in the right place for the first and last question. The middle one might be best suited for /r/linguistics though!
/r/AskAnthropology
Danke Schoun (Thank you) Bitte Schoun (Your welcome.)
Schoun doesn't mean you however. Germany also uses bitte interchangably Example: Person one: BITTE! :) Person two: BITTE :)
I'm not sure how to put the umlaut on the O or how to spell it with out the umlauted O