This is a short psychological fun test. Your mental age is evaluated with 10 questions. The best results come when you answer as spontaneously and honestly as possible. If your favorite is not there, take what's next. Don't take it too serious and remember: growing old is a question of time, while growing up remains an option.
When I was introduced to this psychology test last week, I had a lot of fun. Therefore I decided to make an app out of it. Hope it works for you as well as for me. Let me know your experience with this test and in case you like it share it with others :-)