In the "type what you hear" task I can only get the normal speed to play, there is silence when I tap the slow speed button
Either it is fixed now, or it was some intermittent download problem on your part (I sometimes miss some sound parts due to a slow internet connection, I think).
1. The frustrated recipients are female (otherwise "niciunuia")
2. "Niciuneia" is singular(!) and definite article, like "to none" but then definite like "to neither"
In Romanian-to-English translation of "Nu dă pâine niciuneia", I tried "Do not give bread to any of them" which was rejected, in favour of "He does not give bread to any of them". Could this sentence be in the imperative singular, or is there something I'm missing?
It's beacause it is also the imperative, but it does not take it as correct.