Test your knowledge of Back to the Future, Marvin Gaye and Marmite vs Vegemite — ABC 50/50 quiz

Test your knowledge of Back to the Future, Marvin Gaye and Marmite vs Vegemite — ABC 50/50 quiz.

Each question in the ABC 50/50 quiz has only two options: one is right, the other is wrong. But be warned: we might try to trick you.