I learnt in the former lesson "speak slowly"! I already forgot how was that but anyways...
That will be perfectly fine. You can ask either of that an var är toaletten?.
I don't know. I actually use the distinction badrum/toalett but that might be just me. Both are perfectly normal and common.
Well, in American English. In British English a bathroom has to have a bath in it.
Is there an extra syllable in the TTS on this one? It sounds almost like "Varje badrummet"... or are my ears playing tricks on me?!