Hey, if you’re riddle-minded, check this out:

Antiriddle

But I warn you, don’t do it unless you have some time. Or, you know, are procrastinating papers. Basically, each page is a riddle, and once you figure out the answer to the riddle, you change the url to your answer (like, if you were on page http://www.antiriddle.com/level/cat.html and you figured out that the answer to the riddle on that page was horse, you would navigate to http://www.antiriddle.com/level/horse.html). Go through the little tutorial thing, it’s short and helpful.

Some overall hints: always, always check the source code. There are often hints hidden in code comments. Also, you’ll need to Google some stuff. Wikipedia is very helpful at times. In a few cases, you may need to manipulate the photo–if you have Photoshop, usually changing the levels will help, sometimes inverting the colors works as well. Keep an eye on the page titles, but don’t think that either they OR the photos OR the text under the photos is necessary to the solution. ;) And don’t rule out the obvious answer because it’s too obvious.

I’ve gotten to #22 (with some help from forums–I’m not kidding, some of these are really challenging), so if you get good and stuck, leave me a comment and I’ll give you some hints.