Free Rice

I came across this interesting site called Free Rice while looking through some forums I frequent.

In exchange for guessing the meaning of a word correctly, it claims to donate 'free rice' to the United Nations each time you get it right. Every time you answer, links to 3 sponsors are rotated, which is where they get their money to get the rice.

Costs nothing, and helps improve your grammar too so why not? Its a win-win situation by all accounts.

It also has a "difficulty level" adjustment which automatically scales itself up or down, so you can judge how good your vocabulary is. My best only goes up to 45, but hovers between 38-40.

Here's my score so far, trying to maintain my level at 40+ . :p