Here are all the results with descriptions
5
You've got the brain age of a child, a small child at that. You need to work on gaining some knowledge and maturity which may seem difficult, but it's not impossible. The good news is we bet you're very cute and lovable!
15
You are a bit moody. You go from being a lovable creature to a bit of a demon in a flash. As for knowledge you've got a ways to go, but it's something you're eager to learn. Work on gaining that maturity!
25
You've got a spritely young mind and while you may think you know it all, you've actually got quite a bit to go. Just know that your mind is learning so much so quickly so you should try and absorb as much new knowledge as possible.
40
You have a very middle-aged mind. While you have attained quite a bit of knowledge you're a bit set in your ways. You don't want to learn any new tricks. Just be careful and watch out for that midlife crisis!
60
You're a bit on the older side. Basically, we understand you to be mature and knowledgable. While you aren't that interested in learning new information you've got quite a bit of it to know so it's not really that big of a deal.
80
While you have managed to gather quite a bit of knowledge throughout your life you are also quite a bit forgetful. This makes you on the older end of the brain age. You basically have the mind of a lovable grandpa.