I have created five Peanuts trivia quizzes at the Sporcle website.
Links to all five quizzes may be found on my webpage:
http://timothychow.net/peanuts/quiz.html
The quiz titles are:
Sally’s Malapropisms
Real People in Peanuts
Ace This Peanuts Quiz!
Snoopy’s Alter Egos
Charlie Brown and the Voice
The quizzes are designed so that you can guess many of the answers
even if you don't know them. Of course, actual knowledge of the
strip doesn't hurt.
Enjoy!
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Tim Chow