What's the point? -- Work on your vocabulary skills and help the hungry. On this site, you can answer multiple-choice questions about word definitions, and for every one you get right, 10 grains of rice will be donated through the United Nations World Food Program. It might not sound like much, but the grains add up fast.

What to look for --The longer you play, the more the site, which is a sister site to poverty.com, learns about your word skills, and it adjusts the difficulty as a result. Keep testing yourself and see how close you can get to 50, the site's highest vocab level.