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

Calling all Sudoku and Ken Ken buffs, we have a new addicting puzzle for you! These are tricky, but 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.

Practice your addition and multiplication skills in preparation for factoring equations using these baseball themed puzzles!

Learners put their division skills to the test in this fun puzzle activity!

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

Paris is known for its architecture and cafes. This picture has both, but your kindergartener needs to fill in the missing pieces.

A giraffe Sudoku puzzle gets your child to find the missing numbers using math skills. Solve this giraffe Sudoku puzzle with your child.

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

Pumpkin patch picture puzzle: say that 10 times fast! Cut out the missing puzzle pieces and have your kindergartener put them where they belong.

This octopus Sudoku puzzle lets your child fill in the missing numbers with the help of an underwater friend. Solve this octopus Sudoku puzzle with your child.

Now you can channel your kid's enthusiasm for robots into multiplication practice that's sure to educate as it entertains.

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 worksheet will help your first grader with his sorting skills. He will need to carefully look at the pictures and decide where the missing items go.

Something's missing from this barn picture, but your kindergartener can fix it. Cut the puzzle pieces so your child can glue them into just the right places.

This missing numbers math puzzle will get your kid thinking creatively. Kids who enjoy Ken Ken and Sudoku puzzles will like this amazing math puzzle.

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

Kindergarteners will combine math and reading skills in our lowercase letter Sudoku puzzle. Your kid will fill in missing Y's, Z's, A's, and B's in this puzzle.

Set your sleuth-in-training on the case with this hidden-message activity.

What is a math teacher's favorite dessert? Pi! Find more funny riddles by doing this worksheet--a perfect combination of math practice and brain teasers.

Find out what fills a room, but takes up no space, with this riddle and math combo worksheet. Use subtraction skills to solve the riddle on this math worksheet.

Make multiplication fun with this worksheet that will have your kid build a coral reef, well, a puzzle of one to be precise.

Strengthen students' logic and critical thinking skills with this engaging logic puzzle!

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.

Help students sharpen their logic skills using this fun, thought-provoking nonogram puzzle!

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!

Challenge yourself to a ghostly maze right in the middle of one of London's creepiest landmarks.

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