[Dolores12]

Proof of work. I wonder if these mental exercises do increase IQ.

[viraptor]

They increase puzzle solving abilities/speed, just like any practice. Which means it increases the IQ measure, but not what people think IQ stands for.

[Jaruzel]

A few studies a while back showed that those 'brain training' apps on the Nintendo consoles didn't actually improve any IQ or mental agility, so it's fair to say that these sort of captchas or similar systems don't either.

https://www.sciencealert.com/do-brain-training-games-really-...

[jusssi]

At least you'll get better at solving that particular kind of problem.

So if IQ is defined as your ability to solve that kind of problem, then yes, your IQ will increase.

[taylorlunt]

It isn't.

[lobocinza]

They improve your ability of doing them.