The odd-man-out

ovvero "Trova l'intruso"

Avverbi di frequenza
Which of these is NOT an adverb of frequency?
Which city is NOT a state capital?
Re e regine d'Inghilterra
Who was NOT an English sovereign?
Unione Europea
Which country is NOT a member of the European Union?
Falsi comparativi
Which adjective is NOT a real comparative?
Which adjective does NOT refer to common objects?