It is not enough to have a good mind; the main thing is to use it well.
René Descartes
Thank you to the Chuckra team for such a helpful website.
Chuckra is a small company with a big heart and a passion for challenging the mind. Our range of websites provide educational and cognitive enhancement resources which are available for free (where possible) or at genuinely low prices.
I would personally recommend Chuckra to anyone!