Any game that is a PEGI 3 should be a no brainer. National Geographic Challenge is the Xbox Live Arcade version of National Geographic Quiz, which was easy enough achievement points as you can pause the game and Google the answers...
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Unfortunately it was a 50 - 60 hour grind to complete as some questions were ambiguously written or had images which you can't Google. Hopefully National Geographic Challenge will be less taxing and more Google friendly.
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National Geographic Challenge is due March on Xbox Live Arcade.