Connector Brain Game
Connector is a fantastic brain game. It's excellent because it is really fun, and you can spend hours playing it. Of course, it will also check your problem solving, attention to detail, visual reasoning.
In the connector, you need to connect the line between the battery to the lamp. However, it gets complex as you progress in the levels. That makes it more fun and requires you to invest more effort and thinking on the riddle, solve the problem, and find the solution.