This site has a little vocabulary quiz. It gives you a word and if you pick the correct definition - they give food to the hungry! Every right answer earns 20 grains of rice for the United Nations World Food Program (WFP). Wrong answers do not count against you. No, they don't take food away from the hungry if you don't know what 'ovine' means.
Warning: playing this game could make you smarter. While helping other people. Run for your lives!!
It's fun! So far I max out at level 44. Hee!
Spread the word
(For the doubters out there the UN does recognize it.)