Germany's primary language is German (Deutsch), also called High German (Hochdeutsch), or Standard German (Standard Deutsch). The German language is a standardized combination of the various regional languages of Germany and it's bordering countries, it's considered a High German language (and thus usually called "Hochdeutsch", or "High German", in Germany) because of it's similarities with the dialects spoken in the high altitude regions of southern Germany.
German
German, obviously.
Primary language is the original language one spoke or wrote the material in. Secondary language is translated from the primary language afterward.
Judaism's primary language is Hebrew
The primary language of the mass was Latin.
The primary language spoken in London, England is English
No, Portugal does not speak Spanish as its primary language. The primary language spoken in Portugal is Portuguese.
The primary language spoken in Sevilla is Spanish.
The primary language spoken in Marseille is French.
The primary language spoken in Amsterdam is Dutch.
The primary language spoken in Bratislava is Slovak.
According to several researches it is still English as the primary language.