Free Rice

Came across a nice little page a second ago thanks to the BBC. It's a vocab game...you answer questions rice gets donated to the WFP. Every question you answer generates new advertisers beneath the question, and the advertisers pay for the rice. You don't have to log in or create and account or give an email or anything...just play. And the vocab gets tricky. If you play let me know what level you were able to maintain. While concentrating I was able to stay at about level 40.