Free rice means (a) end world hunger

Who'd of ever thought that building vocabulary could help end world hunger... and be addicting?

But, alas, it can be and is. Thanks to one of our library's workers (named Lisa, to be precise), Free Rice was brought to my attention. It is a web site that not only helps one learn the vocabulary to ace all the examinations one will take over the course of one's life, but also helps to provide rice for people and end world hunger. For every correct answer, one donates 20 grains of rice through the auspices of the UN Food Program.