Ah, I see you are in need of a bit of help to get started. Very well. The fact that you are here is an indication that you are well on the way to helping yourself, but here is a little clarification to aid in your progress:
Once you have found the answer to a riddle, puzzle or cipher, you might want to try to use it as the sub directory of a web address in order to move on to the next part of the cache.
Riddle - A box without hinges, key or lid, Yet golden treasure inside is hid.
Answer – Egg
URL - http://www.rr-riddles.6-pk.com/Egg
Notice that the answer’s initial letter is capitalized. The web address is case sensitive, so keep that in mind. If you are familiar with Weff Riddles, then you are ahead of the game. In short, all answers unless otherwise indicated should be formed without spaces and with the first letter of each word capitalized.
Your answer - "I can't figure this out"
Path – http://www.rr-riddles.6-pk.com/ICantFigureThisOutIn certain situations, you may need to ignore the capitalization rule, but this should be fairly intuitive.
One more thing. In case you didn't know, you can often find interesting clues when you view the source of a web page. Sometimes it is the only way to know what's going on.