one suggestion: right, as in "not left", is destrA, not destrO. for example: "turn right" translates in "gira a DESTRA". destro is usually used to say that somebody is right-handed. amazing quiz anyway! :)
I think that "scale" could also be accepted for "stairs", as in Italian we equally use "scala" (singular) or "scale" (plural). Also, the clue gives both versions (singular AND plural)
I love that the words change with every go :) also 'rompicapo' came up as 'conundrum' which, OK, is a type of puzzle, but it's not a direct translation of 'puzzle'.