Well, as previously declared, friday will be a day for logic puzzles :) So here's a very cool one ...
I'm copy/pasting the description for it:
This is a creative graphical puzzle divided into 15 stages. Each stage comes with a digital image that contains a text that allows you to get to the next stage.
NOTE: The text is always written in a clear form, it's just disguised in some way. There are no riddles or such things. The text is always located within the image file. It's never a reference to a place outside this website!
This puzzle is case sensitive.
When you find the answer hidden in the image, just type it in the text field below and click submit!