I was recommended to try this memory game, which turned out to be quite fun. Basically, you will see a series of numbers appear on the screen for a short period of time. Once the numbers disappear, your job is to click on the bubbles which contained the numbers, going from smallest to largest. Each time you successfully complete a round, the game gets one level more difficult; if you fail, the game drops back to the previous round. You have a total of 10 tries and based on your performance, the final score indicates your “memory age.” In this game, a lower score is better.
I ended up getting a score of 20 on my second try, thereby indicating that my memory age is roughly five times my mental age.