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

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

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.

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

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

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

Put a wonderful winter spin on math and reasoning practice with this festive sudoku puzzle!

Put on your thinking caps and then buckle in for this Fair Ride Frenzy logic puzzle!

Practice logic and deductive reasoning the fun way. Have your student put his thinking cap on and try out this fun and challenging logic worksheet.

On this fun Halloween Sudoku, kids use their logical reasoning and critical thinking skills to solve this puzzle.

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

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

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with capital A, B, C, and D.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with capital I, J, K, and L.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with capital M, N, O, and P.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with capital Q, R, S, and T.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with capital U, V, W, and X.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with capital Y, Z, A, and B.

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

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.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with the numbers 5, 6, 7, and 8.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with the numbers 9, 10, 11, and 12.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with the numbers 13, 14, 15, and 16.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with the numbers 17, 18, 19, and 20.

Get ready for a tangram challenge! Build math and reasoning skills by using all tangram shapes to re-create the picture on this page.

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

On this third grade kids sudoku printable, kids use their logical reasoning and critical thinking skills to solve four Sudoku number puzzles.

On this kindergarten math worksheet, kids use their logical reasoning and critical thinking skills to solve a Sudoku puzzle with an Independence Day theme.

Practice addition and subtraction within 10 in this St. Patrick's Day-themed math puzzle!

Go on a beach adventure in this find-it sheet.