If you are referring to increasing cognitive capabilities when you say "increase intelligence" then the first question to ask if such a capability is trainable?

If you are referring to increasing cognitive capabilities when you say "increase intelligence" then the first question to ask if such a capability is trainable? And the second question is if you can find a way to train intelligence (for example by playing a game) the second question is if the gain is transferable to non-related training tasks (i.e if you can take the gain with you and apply it in new situations). The answer to both questions is not so simple: 1. There are some studies on training of intelligence which suggest it is possible to increase intelligence (they are talking about fluid intelligence) with some kind of a training. One that comes now into my mind is this: "Improving fluid intelligence with training on working memory" -http://www.pnas.org/content/early/2008/04/25/0801268105 http://www.pnas.org/content/early/2008/04/25/0801268105 Another one is this: "Putting brain training to the test" http://www.nature.com/nature/journal/v465/n7299/full/nature09042.html http://www.nature.com/nature/journal/v465/n7299/full/nature0... 2. On the other hand a Meta-analysis of studies related to Working Memory (which is one metric of the concept of intelligence) found limited evidence of improvement: https://www.apa.org/pubs/journals/releases/dev-49-2-270.pdf https://www.apa.org/pubs/journals/releases/dev-49-2-270.pdf So if you believe studies related to the first point then you can use what it is called brain games. And if you take this path I would recommend using N-Back game as it is the most studied. If you go with point 2, then then the focus is not so much on increasing intelligence, but on let's call it "educating" intelligence - thinking skills. In this category I would recommend (without any scientific evidence behind): - Learning yourself about Problem Solving Strategies - Reading (fiction and non-fiction) - Writing and summarizing - Reading about Skepticism, Critical Thinking, The Scientific Method or in general Epistemology and trying to use them in your tasks You could also take a look at this: http://www.dana.org/Cerebrum/2009/How_Arts_Training_Improves_Attention_and_Cognition http://www.dana.org/Cerebrum/2009/How_Arts_Training_Improves...