...but not for you.
If you can afford to own a pc and come online, you're rich enough to afford buying your own rice.
http://www.freerice.com/ is a vocabulary game. For each word you get right, they will donate 10 grains of rice to the United Nations World Food Program. It doesn't seem like much to us, but spend just 15 minutes playing it and you'll feed someone a bowl of rice.
If you get it right, you get a harder word. If wrong, you get an easier word. This way you can see your "score" so to speak. If you're going to take your SAT, GRE, LSAT and GMAT or some other english exam, this would be a good workout. If you can do well here, I'm sure you will have no problems in the MUET. =P
If you're wondering what's the catch, well, there's no catch. The rice is paid for by the advertisers whose names are scrolled at the bottom of your vocabulary screen.
So what are you waiting for? Feed someone!
edit: There seems to be some sort of bug with the came at the moment; at a random question they will show that you answered wrongly even though you clicked on the correct word. Oh well, just keep playing since you'll still be giving rice away.