Well, there's 'Peanuts' - it's full of simple and hilarious moments with Charlie Brown and his gang. And classic Looney Tunes cartoons often have clean and funny jokes too.
You could check out 'SpongeBob SquarePants'. It has a lot of wacky and clean humor. Also, some stand-up comedy acts for kids have clean and funny jokes, like those by Jeff Dunham with his puppet characters.
Here's one: What did the zero say to the eight? Nice belt! It's a simple but funny and clean comic joke. There are many like this where you play with numbers or shapes.
One funny clean cartoon joke is: Why was the math book sad? Because it had too many problems!
Here's one: Why did the tomato turn red? Because it saw the salad dressing!
Here's one: Why don't scientists trust atoms? Because they make up everything!
A story for you. There was a little boy who was very nervous about his first day at school. His mother told him to be brave and that he would make lots of friends. When he got to school, he saw a little girl crying. He went up to her and said, 'Don't cry. I'm new here too. Let's be friends.' And they became good friends. It's a simple but sweet clean story.
One funny joke could be: Why don't scientists trust atoms? Because they make up everything!
Sure. Here's a clean joke: Why don't scientists trust atoms? Because they make up everything. As for a funny story, once there was a little boy who thought his nose was too big. So he decided to pull it every day to make it smaller. After a week, his nose was still big but his arms were really long.
Here's a joke. A magician was walking down the street and turned into a grocery store. Well, it's a play on words as'magician turned' sounds like'magician walked into'.
Joke: What key has legs and can't open doors? A turkey! Story: In a barnyard, all the animals were having a party. The turkey was the DJ. He started dancing and making funny gobbling sounds instead of playing music. All the animals joined in and it turned into a hilarious dance party.
A joke for you. I used to be a banker but I lost interest. A funny story: There was a dog that loved to ride in the car. One day, its owner took it on a long road trip. The dog stuck its head out the window the whole time, tongue flapping in the wind. When they got home, the dog was so tired but it had the best time.