Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle.

From classic riddles to spelling puzzles, these brain teasers are all around you. Readers will turn the pages for more mind-bending word games all within the home theme. Each riddle is accompanied by playful illustrations, with answers hidden at the back of the book, to allow readers the chance to solve each one on their own.

A collection of jokes about bugs.

A book of riddles on the topic of food, with answers in the back of the book.

This book of brain teasers runs the gamut of subjects from geography to science, and from poetry to math. The colorful word-filled bubbles make each riddle eye-catching, and playful illustrations add a whimsical touch as readers challenge themselves to solve each mind game.

When Rosamond turns a phone message from Pip's mother into a music lesson with a secret meaning, Nate the Great steps in to solve the mystery.

As the new Keepers of the School, sixth-graders Ben and Jill must decipher a handful of clues written as maritime riddles to save their school from demolition by a greedy company.

A collection of nearly three dozen riddles featuring turkeys, such as "What happened when Tom Turkey stepped up to the plate? He hit a fowl ball."

Simple jokes and riddles about common holidays.