Riddles at Funtestiq  
   Interesting riddles served to you automatically.
   http://www.funtestiq.com/riddlesanswers/riddles.shtml

Rhyming  
   Different riddles based on The Hobbit. Determine what each rhyme is describing.
   http://www.pressanykey.com/cgi-bin/cgiwrap/pak/riddles.cgi

Rubik's Riddles  
   A selection of different tasks to beat Rubik.
   http://www.rubiks.com/riddles.html

Tree Riddle  
   An old multiple riddle. Identify 65 names of trees.
   http://www.thinks.com/riddles/tree.htm

Riddle of the Week  
   Just one question a week. Answer on e-mail.
   http://www.frontiernet.net/~carlise/riddle/index.html

RiddleAday  
   Riddles, puzzles and brain teasers to challenge and entertain all ages. [E-mail lists]
   http://www.riddleaday.com/

Fleabusters' Kids Fun Page  
   Riddles with responses as well as unanswered.
   http://www.fleabuster.com/Kids/kjokes.html

HumorShack  
   Archive of cartoons, riddles with answers and a free mailinglist.
   http://humorshack.com/archive/riddles/index.shtml

Harder Riddles  
   Some harder riddles marked with stars to identify the degree of difficulty of each riddle. Accompanied with answers.
   http://puzzle.dse.nl/harder/index.html

Amusements in Mathematics  
   Riddles by Henry Ernest Dudeney.
   http://www.thinks.com/puzzles/dudeney/dudeney.htm

Puzzles by Sam Loyd  
   Ten puzzles from a collection that appeared in various newspapers and magazines over the previous fifty years.
   http://www.thinks.com/puzzles/loyd/loyd.htm

The Masters of Logic  
   The difficulty of the logic puzzles increases until almost unsolvable. The list "The Masters of Logic" shows the solutions.
   http://www.helary.de/logic/

PickandSend  
   A collection of brain teasers, riddles, and logic puzzles. Answers on highlight, sending feature.
   http://www.pickandsend.com/riddles/puzzles.htm

DiMensIoNS  
   Riddles abound, odd and complex riddles, brain teasers. Explained meanings and complete answers.
   http://www.some-guy.com/riddle.html?contents

Riddle-Poems, and How to Make Them  
   The gentle and literate art of the rhyming riddle.
   http://www.catb.org/~esr/riddle-poems.html

Opossum Sally's Goldenmean  
   Collections of jokes and riddles from penpals.
   http://possumsal.homestead.com/

Riddles  
   A collection of riddles sorted into categories to amuse, puzzle and test.
   http://www.scatty.com/jokes/riddles/

Riddle Planet  
   A contest with twenty-five riddles per each classified round with a money prize for the first person to solve them all.
   http://www.mtgplanet.com/riddleplanet

Stumpers  
   Students submitted math riddles for problem of the day.
   http://www.concentric.net/~Ahenson/riddles.html

Pack 114 Fun Pages  
   A collection of ten trivial riddles.
   http://www.creighton.edu/~bsteph/pack114/funpages/cs-ridl1.html

Spreadsheet Jokes  
   A bunch of riddles on spreadsheet programs.
   http://www.j-walk.com/ss/jokes/riddles.htm

Random Riddles  
   A collection of submitted riddles.
   http://www.srainc.com/people/brentr/riddles2.html

Sureshot Riddles  
   A fun and challenging collection of logic riddles and sequences.
   http://www.sureshotsoftware.com/riddles/

A Collection of Quant Riddles  
   Logical and lateral type thinking riddles with some answers.
   http://puzzles.nigelcoldwell.co.uk

Brainbusters  
   Selection of questions with answers and a chatroom.
   http://mysite.wanadoo-members.co.uk/brainbuster/

Daily Outrageous Rebus Riddle Contest  
   Cartoon rebus riddles posted daily. Answers are submitted by e-mail.
   http://rebuspage.home.comcast.net

Jason's Puzzler Page  
   Small collection of riddles with answers.
   http://www.jasonspuzzlerpage.150m.com/

Tyfani's Weekly Riddle  
   Offers mad gab-type riddles with solutions and archives.
   http://www.geocities.com/horselovertw/wr/

Able2Know  
   A public forum for riddlers and riddle lovers in several topics.
   http://www.able2know.com/aa_riddles.php

Brain Teasers  
   Classic puzzles and riddles sorted in several sections - general logic, weighing puzzles, Einstein's riddles, number sequences, and crossing river.
   http://hlavolamy.szm.sk/brainteasers/puzzles-riddles.htm