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

What do sea monsters eat? Solve the math problems in this worksheet to reveal the answer! This math worksheets gets kids to build math and spelling skills.

Use this space-themed Sudoku puzzle to help your 5th grader develop thinking skills. Pick your own difficulty level with Education.com's Worksheet Generator.

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.

Want a fun way to boost your third grader's multiplication skills? This winning worksheet integrates multiplication practice into a fun robot building activity!

Challenge your fourth grader to "sew" up a snazzy Sudoku puzzle!

"Sewing" up this Japanese number placement game is a project that will boost both your child's critical thinking and problem solving skills!

This fun-filled, yet educational printable packs in multiplication and mental math practice as it shows your third grader how to build his own robot.

Boots, sneakers, flip-flops, slippers—which new shoes did Maria get? Solve this puzzle to find out!

Engage students in critical thinking with this line order-themed logic puzzle!

Give your fourth grader some inconspicuous practice with numbers with this colorful Sudoku puzzle!

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

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

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