This is somewhat interesting. I had seen this before on the net and I just saw it again:

fi yuo cna raed tihs, yuo hvae a sgtrane mnid too. Cna yuo raed tihs? Olny 55 plepoe out of 100 can. i cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it dseno't mtaetr in waht oerdr the ltteres in a wrod are, the olny iproamtnt tihng is taht the frsit and lsat ltteer be in the rghit pclae. The rset nac eb a taotl mses and yuo cna sitll raed ti whotuit a pboerlm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Azanmig huh? yaeh and I awlyas tghuhot slpeling was ipmorantt!

I got curious so I googled the issue and I got these links from Cambridge: The Cognition and Brain Sciences Unit at Cambridge is here and this is a page on exactly the stuff above.

weird!
(PS: if you want to waste more time check the links at Urban Legends; actually, do this after our exam)