The following is called Puxe Pelo Cérebro, a weekly quiz feature of Revista da Semana in the 1950s.
It’s interesting to see what perhaps passed for common knowledge among the reading public in 1950s Brazil. I would presume that most Cariocas today couldn’t answer most of these questions (much like I doubt if most Americans could correctly answer questions from the US Citizenship test).
As for me, due to my interest in the subject, I got some correct (10, 11, 12, 13, 14, 19), and a few more I made correct guesses at (16, 17, 18, 20).
The answer key