I thought since it is the holiday season, this would be appropriate. My sister told me about this site yesterday. It is really cool. For every question you get right, 10 grains of rice are donated to end world hunger.
http://freerice.com/You might think "Oh, 10 grains of rice. Big deal." Well if everyone got 10 questions right, that is 100 grains of rice per person. Each grain adds up. Check it out.