Braingle

Braingle: Logic Grid Puzzles

Braingle: Mystery Number

CoolMath4Kids: Brain Teasers

CoolMath4Kids: Logic Games

CoolMath4Kids: Puzzles

GymnasiumForBrain: Puzzles

KidPort: Verbal Reasoning (flash)

MathIsFun: Logic Puzzles

Miniclip: Puzzle Games

PrimaryGames: Power Lines Phase 1 (flash)

Games68: Power Lines Phase 2 (flash)

PuzzleBaron: Logic Grid Puzzles

PuzzlePlayground: Puzzle Games

Puzzler'sParadise: Logic Grid Puzzles

Puzzle.com: GridWorks (flash)

SetGame: SET

SolveMe: Mobiles

SumsMath: Cross the Maze (flash)

SumsMath: Tangrams (flash)