Code puzzles

Unlock the Mystery with this crack-the-code 3-digit puzzle which is especially designed for school students. Sharpen your logical reasoning skills.

Welcome to Dover Publications: U.S.A. Secret Code Puzzles for Kids

Once they know that the coded riddles on this page contain a simple alphbet and number swap code, older children should be able to work out what the riddles are by themselves.

Puzzle-solving genius kids form a pint-size crime-fighting Mod Squad in this month's Backseat Book Club pick. Trenton Lee Stewart, author of The Mysterious Benedict Society, takes questions from young readers about the book's twists, turns and creative conundrums.

Cracking this code puzzle is a mental challenge and brain teaser.

Can you Crack the Code ? 2 9 1 - One number is correct and well placed 2 4 5 - One number is correct but wrong place 4 6 3 - Two numbers are correct but wrong places 5 7 8 - Nothing is correct 5 6 9 - One number is correct but wrong place

Five REAL codes and ciphers that kids can use to send and receive secret messages. Download the free encryption and decryption tools. Or upgrade to the Fun Pack for more fun activities!

15,583 points • 1,758 comments

Get ready for a brain-freezing, mind-teasing adventure with our Ice Cream Cryptogram Game! This frosty puzzle adds a cool twist to the classic cryptogram, bringing the world of ice cream flavors to an entertaining and challenging decoding experience. Simply download and print.