As I'm quite new to the site, I've been reading through all the previous stuff posted and went on the
www.freerice.com. They now also cover Art, Chemistry, Geography, Languages and Maths. Great for a mental workout (and you can polish your halo afterwards!) - thought I was doing quite well until I had to identify countries!
Thanks for the post Jen - have passed the site on to quite a few others.
C xx