There doesn't actually exist a website under the domain Hard Riddles at the moment. With that in mind were someone to purchase the name it would probably be to have a website filled with riddles one would find difficult to solve.
if you dont have one go see a doctor
You can find riddles by going to riddles and more.com , first you have to type google in your search bar then you have to type in just riddles and more and you can get into a riddle database. ITS NOT BRAIN SCIENCE!!!!!!!!!!!!!!!
wikipedia and the doctor who website
EVERYWHERE.
There are many web sites where you can find riddles. Some of them are: riddles.com trickyriddles.com riddlenut.com funnyriddles.net
riddles.org
yay
Yes, users on WikiAnswers will answer your riddles. Go to 'browse categories' in your blue bar to the left, and in the search box, type in 'jokes and riddles'. There is where you can find many popular jokes and riddles, and answers to them.
mensa.nat
You can find Doctor Who merchandise on shopping websites such as eBay. You can also go directly to the Doctor Who website to find merchandise for sale.
You can find an acupuncture doctor from the Healthprofs website. Once on the page, click on "Acupuncturists" in the navigation menu and enter in your location to find a doctor near you.