Turkey did not participate to the WW2, so the answer to the 5th question should be "neither".
Ottoman Empire was a multi-ethnic and multi-lingual state and all the officially recognized churches had their respective languages also recognized as official languages. So, Turkish was not the sole "official" language.
*Official language is/was Turkish" does refer to a sole language. If you want to make the question as you claimed it is, it should be "Turkish is or was an official language".
Ottoman Empire was a multi-ethnic and multi-lingual state and all the officially recognized churches had their respective languages also recognized as official languages. So, Turkish was not the sole "official" language.
It never asks about the "sole" official language.