Strong Brain links for Puzzle Sites

Puzzles and Lateral Thinking Problems
  -- Lateral thinking puzzles and numbers brain teasers
Brain Food
  -- A variety of different types of puzzles
Archimedes' Laboratory - Puzzles
  -- Visually-oriented puzzles
http://www.cs.rpi.edu/~magdon/miscellaneous/puzzles/puzzles1.html
  -- Interesting combinatorial problems
"rec.puzzles Archive (logic), part 25 of 35"
  -- Lateral thinking puzzles with alternative answers
Brain Twisters
  -- Versions of lateral thinking puzzles
Grazzamatic's Lateral Thinking Exercises
  -- Lots of lateral thinking puzzles
Harmony
  -- An interesting collection of problems
BRAIN TEASERS; RIDDLES
  -- Versions of lateral thinking puzzles
Logic Questions
  -- """Watch out for your assumptions"" type of logic puzzles"
Category:Puzzles
  -- Lateral thinking puzzles
"NIEHS Kids Page -- Riddles, Text Only Version"
  -- Lots of riddles
Expand Your Mind - Puzzles and Brain Teasers
  -- Logic problems
Exidor's Logic Puzzle Place
  -- Logic problems - follow the 'old problems' link in the lower left
ALPHA - Fun Page
  -- Versions of lateral thinking puzzles
Traps (a.k.a. Brain Teasers)
  -- Over 400 brain teasers