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

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

Christmas sudoku lets your child exercise his brain while cutting a pasting festive holiday images. Play Christmas sudoku 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 has teeth but no mouth? Find out the answer to this and more riddles in this Riddles and Codes worksheet.

Shape up those problem solving skills with a fun block puzzle activity, comparable to tangram puzzles!