What's both fun and challenging? These Riddles and Codes worksheets, which pack a one-two punch of brain teasers.

Put your child's spelling skills to the test. She'll search for four-letter words hidden in the word puzzles. How many can she find?

This puzzle printable features picture Sudoku for the Hanukkah season, with one puzzle for easy and one for medium.

Put your addition skills to the test with these puzzle boxes for second and third graders!

Challenge learners with a delicious game of Pie Picture Sudoku with this engaging cut-and-paste worksheet!

Hone spelling skills and logic skills, all in one fun word ladder activity! Change just one letter at a time to work their way down the ladder.

Introduce second- and third-grade learners to the exciting world of logic puzzles with this engaging worksheet!

Celebrate spooky season with this colorful puzzle for young learners!

If your child is done with easy- and medium-level picture Sudoku maybe she's ready for this one.

Soar to new spelling heights with these word ladders! Kids will hone spelling skills and logic skills, all in one fun activity.

Spruce up spelling practice with these challenging word ladder puzzles! Kids will change one letter at a time to create a group of new words.

Solve Sudoku for beginners by using logical reasoning and critical thinking skills to place numbers 1 through 4 in each row, column, and block only once.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with the numbers 1, 2, 3, and 4.

Here's a colorful way to help your child see patterns in words. She'll change just one letter of each word to work her way down the ladder.

Kids will have a whale of a good time completing this Sudoku for beginners puzzle! Solve it by writing numbers 1 through 4 once in each row, column, and block.

WordGirl knows one place where she's sure to find lots of words - the library! This word scamble from PBS KIDS' WordGirl has lots of library words to find.

In the Starry Sudoku worksheet, kids solve four Sudoku puzzles. In each row, column, and block the numbers 1, 2, 3, and 4 must appear once and only once.

Solve a sunny, summery sudoku puzzle in this sandcastle-themed puzzle!

This Christmas tree puzzle is easy to make and fun to use. Create a colorful Christmas tree puzzle with your child this holiday season.

On this second grade math worksheet, kids use their logical reasoning and critical thinking skills to help Bart the Bear solve four Sudoku number puzzles.

In this second grade math worksheet, kids use their logical reasoning and critical thinking skills to solve four Sudoku number puzzles.

On this second grade math worksheet, kids use their logical reasoning and critical thinking skills to help the squirrel solve four Sudoku number puzzles.

On this second grade math worksheet, kids use their logical reasoning and critical thinking skills to help the zebra solve four Sudoku number puzzles.

On this fun second grade math worksheet, kids use their logical reasoning and critical thinking skills to solve four Sudoku number puzzles.

Kids will be all smiles when they complete this worksheet. Sudoku is a fun logic puzzle that lets kids use their logical reasoning and critical thinking skills.

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

Ready or not, engage students with this hide-and-seek-themed logic puzzle!

This Christmas brainteaser features two pages of colorful medium-level picture Sudoku for young kids.

What can run but can't walk? Reveal the answer to this clever riddle by cracking the number code in this Riddles and Codes worksheet.

What has teeth but no mouth? Find out the answer to this and more riddles in this Riddles and Codes worksheet.