Embedded systems programming

http://www.embedded.com/columns/significantbits/18400795?_requestid=287915

http://www.embedded.com/columns/technicalinsights/55301875?_requestid=231663

The above 2 links came from
http://groups.google.com/group/alt.os.development/browse_thread/thread/e3def3f1af07ad92?hl=en

IQ test puzzles
http://www.wordofmouthexperiment.com/dedpyhto/IQ-test-trainer.htm

 meditation helps improve IQ of brain
http://www.inspiredabundance.com/index.php/inspired-abundance/15-simple-exercises-to-keep-your-brain-sharp

Memory and the reasoning skills
http://www.inspiredabundance.com/index.php/inspired-abundance/15-simple-exercises-to-keep-your-brain-sharp

http://www.google.co.in/search?q=Work+out+your+brain+to+keep+sharp&hl=en&start=10&sa=N