I saw this site about a year ago and figured it would need time to prove itself. It has, with a simple premise: Answer questions and with each correct answer you donate 20 grains of rice through the UN World Food Program.
Take your pick of English Grammar (Picky Grammar Lady, anyone?), English Vocabulary, Chemistry, World Capitals or other categories and note how your level rises or falls according to how well you answer the increasingly-difficult questions. And note too how you learn, for wrong answers elicit the same question until you get it right, and some questions are repeated to make sure you really know the answer.
Stretch your brain and help feed the hungry: It's only a few seconds away.
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