Solve the mystery of who's who in this puzzle full of spooky, cute, and creative Halloween costumes! 

If your child is mad for math, give him a challenge! These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

This easy Sudoku puzzle features the lowercase letters a, b, c, and d! Solve the puzzle by writing each letter only once in each row, column, and block.

Who came to the family reunion? Put your logic to the test and figure out how many people were actually at this reunion.

Looking for a way to get your child excited about math? These math puzzles are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Calling all Sudoku and Ken Ken buffs! Give your student a fun way to practice math and problem solving with these fun puzzles.

Is your child a math whiz who needs a challenge? These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Build shape recognition and logical reasoning with this series of block puzzles! Similar to tangrams, kids will use blocks to fill in each puzzle.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a colorful Sudoku puzzle.

Fun Fun puzzles are almost like Ken Ken! These ones are tricky, but very fun to solve. Give your student a fun way to practice simple arithmetic.

Math maniacs, these challenging puzzles are for you! These four puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Sudoku and Ken Ken enthusiasts will enjoy this mad math puzzle, full of addition, subtraction, multiplication, and division challenges.

KenKen® is a math logic game that comes from Japan. This beginner puzzle is perfect for a fifth grade student working on operations and math reasoning.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a fun Sudoku puzzle with a sports theme.

Think outside the box! Your child can exercise his logic by figuring out how quickly the mountain goat will get to the top of the hill.

Calling all Sudoku and Ken Ken buffs! These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Students use algebraic thinking to find the value of each symbol in this Valentine's Day math puzzle!

Does your child need a little challenge in math and problem solving? These math puzzles are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Uh oh, someone mislabeled these boxes of fruit! Can your child use their logic to figure out which fruit is in which box?

Numbers are full of patterns! Can you use your knowledge of patterns in times tables and math facts to solve this riddle?

This is for all you math whizzes who need a challenge! These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Take the block puzzle challenge! This series of tangram-style geometry puzzles is a great way to build logic skills in your kindergartener.

This simple, sporty Sudoku puzzle is perfect for kindergarteners! Your little sports star will get to build logic skills as he solves the picture Sudoku.

Check out this beginner level KenKen® puzzle — a puzzle that uses math operations and logic.

Keep your amazing math student on his toes with some challenging puzzles! These math grids are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Christmas sudoku lets your child exercise his brain while cutting a pasting festive holiday images. Play Christmas sudoku with your child this holiday season.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with an Independence Day theme.

Calling all Sudoku and Ken Ken buffs, here's a little something new! These math puzzles are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Solve this Thanksgiving Sudoku puzzle by cutting and gluing pictures into the puzzle, with each picture appearing only once in each row, column, and block.

If your child has a knack for number games, he'll love this mysterious math puzzle. Kids will use addition, subtraction, multiplication, and division skills.