Want to exercise your brain and do the world a favor? Check out Free Rice! It's a website that quizzes visitors about a variety of different subjects, from literature to chemistry to geography and even SAT prep! For each answer you get correct, Free Rice donates 10 grains of rice to the U.N. World Programme to help end world hunger. Free Rice has been able to feed more than 1.5 million people a day! Keep the good going. Whenever you have free time, decide to donate some rice here!