Bad Day at Monster Elementary
The Bully Brothers
Bully Brothers: Gobblin' Halloween
The Bully Brothers Making the Grade
The Bully Brothers Trick the Tooth Fairy
The Cafeteria Lady from the Black Lagoon
Camp Rotten Time
Camp Rotten Time: Funny First
Cannon the Librarian
Catzilla
Chocolate Marshmelephant Sundae
Cinderella Bigfoot
Clown's Smile
Colossal Fossil: The Dinosaur Riddle Book
Come and Play, Hippo
Complete Cookie Book
Cream of Creature from the School Cafeteria
The Custodian from the Black Lagoon
Daniel: Nice Kitty!
Earth Mirth: The Ecology Riddle Book
Fang the Dentist
Frankenstein's Pantyhose
Funny Bones
The Gym Teacher from the Black Lagoon
Hanzel and Pretzel
Hippo Lemonade
A Hippopotamus Ate the Teacher
How Far Will a Rubber Band Stretch
Imagination
I'm Dracula, Who Are You?
In the Middle of the Puddle
It's Me, Hippo!
King Kong's Underwear
Knock Knocks You've Never Heard Before
Knock Knocks: The Most Ever
Librarian from the Black Lagoon
Little Dinosaur
Love Stinks
Madge's Magic Show
Make Your Beds, Bananaheads!
Miss Yonkers Goes Bonkers: Help! Our Teacher Has Flipped Out!
Monster Knock Knocks
Moon and the Balloon
Moonkey
Moose Is Loose
Moving to Mars
Mr. Bananahead at Home
The Music Teacher from the Black Lagoon
My Cat Is Going to the Dogs
My Puppy
Never Give a Fish an Umbrella and Other Silly Presents
Never Mail an Elephant
Never Tickle a Turtle
Oinkers Away!: Pig Riddles, Cartoons and Jokes
Owly
PAC Man Riddle and Joke Book
Pack 109
Paws: Cat Riddles, Cat Jokes and Catoons
Princess and the Pea
The Principal from the Black Lagoon
Puppet Club
Riddle King's Camp Riddles
Riddle King's Food Riddles
Riddle King's Pet Riddles
Riddle King's School Riddles
Riddle Rainbow
Scared Silly
The Schmo Must Go On
Schmoe White and the Seven Dorfs
The School Bus Driver from the Black Lagoon
The School Nurse from the Black Lagoon
Seven Little Hippos
Soup with Quackers: Funny Cartoon Riddles
Stuffed Feet
There's a Hippopotamus under My Bed
The Teacher from the Black Lagoon
Upside Down Day
Uses for Mooses and Other Popular Pets: Luffalong
What Could a Hippopotamus Be?
What's up Duck
Yellow Brick Toad