My brother introduced me to this site. It’s supposed to be helping poor people around the world by giving them rice. For every correct answer, you are donating 20 grains of rice. The questions are getting tricky as your level go up. If you have a wide range of vocabulary then you’d enjoy this game and you’d be able to help too. (I don’t no if this site is true, but hey, it’s free and it’s not bad trying right?) So here the link just click it. Enjoy!