From Slashdot, I found a page where you can test your brain speed (may only work on Windows). According to the test, I’ve got a brain speed of 43ms – and for my age bracket the fastest speed is 35ms and the average is 70ms. So I’ve a fairly fast brain!

I managed 39ms. I think it would have been faster but my mouse stuck a few times.
I scored 46ms but I’m an old man. My mouse was fine but my brain stuck a few times.
I scored 46ms but I’m an old man. My mouse was fine but my brain stuck a few times.