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

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.

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.

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.

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.

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.

Crack the code in this printable phonics worksheet all about words ending in -ng and -nd.

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

A word ladder is a fun and challenging way to help kids with spelling. They'll start to see how words follow certain patterns.

Have some fun with vocabulary words using a Valentine's Day word scramble for first, second, and third graders!

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.

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

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

Get into the spirit of the holidays with this fun crossword puzzle! Your child will get to practice his handwriting skills and build his vocabulary.

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.

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 new pet did Devon just get? Find out as you complete this engaging worksheet!

Say goodbye to spring fever with this sweet spring-themed math puzzle!

Try your luck with this picture-based sudoku for kindergarteners and first graders!

First and second graders will LOVE finding the missing numbers in this adorable Valentine’s Day math puzzle!

Practice addition and subtraction within 20 with this sweet Valentine’s Day math puzzle!

Solve a sweet sudoku puzzle in this Valentine’s Day-themed worksheet for first and second graders!

Spark curiosity and problem-solving skills in young learners with this engaging spring-themed math puzzle!

Can you use your logic skills to find out what new toy Ben just got? Try this colorful brain teaser!

Invite your learners to hop into some fun with this seasonal Easter puzzle worksheet!

Ignite problem-solving prowess in your young math learners with this fun Easter puzzle worksheet!