Sah, my dudes, I've recently gotten into a site called FreeRice, which allows you to practice school subjects. Other than practicing school subjects, however, for every question you get right, they donate 10 grains of rice to the World Food Programme cough with revenue from ads cough. I made a group on FreeRice called Steemit Against Hunger so that all of us Steemians know how much we have donated. If you'd like to join, please click the link below: