Is it permissible to write out HaShem's actual name (the "Tetragrammaton") in English (or any other, non-Semitic, language)? Does it make a difference how you spell it, ie., whether you write it in ...
If someone has some trouble with Aramaic and learned parts of a mesechta in English (for example with an Artscroll Gemara), can he still make a siyum?
(Inspired by this comment). Does halacha permit Jews to speak languages other than Hebrew? Bedieved? Lechatchilah?
Is there a law against saying obscenities? If yes, what is considered obscene? Does it apply to any language or only to Hebrew?