Deleted

I actually have one. but it's not in english... sorry.
Thanks for the train

How about duolingo? It makes you learn languages :D

Have you checked out Not pr0n? It's a series of really tricky puzzles that requires a good amount of thinking "out of the box" (the puzzles all make sense though). Might not be cellphone friendly though, if that's what you're looking for.

Oh and apparently Myst has been released for iOS. Plenty of logic puzzles there as well.

You should check out project euler.

www.lumosity.com It also has an app for smarphones.

bump

http://noexcuselist.com/

Trivia Crack?

I had fun at https://www.cognifit.com/ some times ago, it could be used as a website or iPhone/iPad apps, but I'm not sure if it's still free

Bumpy ride bump!

Start taking a course in something or better yet just study advanced mathematics and practice every so often, but then again that's too much effort amirite? and you probably need an app or light taxing task to give you the illusion you are actually doing something cognitively stimulating.

learning new language has proven to keep your brain cells chipper.
This site is free & fun. It will help you to get started.They have app too.

what did you do to calm down after getting pissed off?

take this cat video !

https://www.facebook.com/RantLifestyle/videos/430840413745206/?pnref=story

bump bump :D

I use Lumosity as well. The free app is pretty neat, the paid version is even better.

http://www.spring.org.uk/
http://www.ted.com/
http://www.brainpickings.org/
http://www.lettersofnote.com/
^ mostly stuff to read/see at leisure

I'm not sure if is what you are looking for, but I usually lurk here:
reddit.com/r/HistoryPorn/
/r/todayilearned/
/r/explainlikeimfive/

Free bump

I heard there is some objective in the outer universe that is called "book"

Bump and thanks!

If you ever had an Android phone, I can suggest some good apps for brain exercise

Bump for the coal train!

remember Brain Age for the DS? that game was fun and is exactly what you want... and with phones theses days... wink wink. anyway bump

http://www.steamgifts.com/discussions/puzzles