You can win cash to pay for your college tuition fees by joining a 50 questions challenge. Visit www.nisaidie.com for details. This challenge is designed for college and university students but high school students are welcome to try.
Of course it is open to all Tanzanian students but if they are in foreign countries they have to contact nisaidie.com first to see how they can pay entry fee which is T.Sh 3000 ( about $ 2). The contacts are available in the website.