paully
So how many do you speak
Actually, (just) two, English and German.
I think that in reality TUI would be looking for minimum bi-linguists - a Nordic language plus English, or German plus English.
As johnnychips suggested, you won't find too many Germans who also speak any more than a spattering of a Nordic language, but you will find plenty of Germans and Scandinavians who speak English (fluently) as a second language.
It's the Brits who will lose out through our lack of language skills - a harsh lesson, but one that needs to be learnt.