I went to this website http://www.freerice.com 

and answered some questions.

Here's how it worked.

For every question you answer correctly, you'd donate 10 grains of rice.

It will be sponsored by the banners which appeared below after each questions.

I was at it for a full hour, or even more. 

I've donated 8,110 grains of rice! 

Which means answering 811 questions!

I get to learn english and donate. How nice.(:(: