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

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

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.

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.

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.

Addition doesn't have to be puzzling—practice finding sums with these puzzle boxes!

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

Your students will need their addition facts and a bit of logic to solve this KenKen® math puzzle.

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

Add a fun twist to math practice with these second- and third-grade addition puzzles!

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

Addition doesn't have to be puzzling—practice finding sums with these second- and third-grade puzzle boxes!

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

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.