http://flashfabrica.com/f_learning/brain/brain.html 20 on my first try... Instructions: Click on the lowest number to the highest number in order...
34 on my first try... and i missed the first one cuz i didn't read the instructions or your post. actually. that's very close to my actually age.
I think it factors in how early you mess up as well...like, if you mess up on the 2nd to last number it hardly docks you anything.
The only brain age game I know of is the one on the DS. It told me my brain age is 50 when I'm only 49 years old. Can I get a refund? If it was a few days or months off, I could understand...but one whole year? That's not accurate enough.