Once there was a magician on a plane. He told the flight attendant he could turn into a dove and fly off the plane. The attendant said, 'Show me.' So he did his magic trick. And the attendant said, 'Well, now go into the baggage compartment.'
Once upon a time, a magician was performing on stage. He said he could make a rabbit disappear. He waved his wand, said the magic words, and opened the box. But instead of the rabbit disappearing, his assistant was gone. The magician was so shocked that he accidentally turned himself into a carrot.
A dog decided to go for a swim in a pond. But when it got in, it realized it couldn't swim as well as it thought. It started paddling furiously and barking at the same time. A nearby duck just looked at the dog and quacked as if to say 'What are you doing?' The dog finally made it to the shore, looking very embarrassed.
A man was staying in a supposedly haunted hotel room. He heard strange noises all night. In the morning, he found out it was just the old radiator making those spooky sounds. Turns out the 'ghost' was just a creaky old heating system.
Surprise is a key element. For example, if a story starts with a normal situation like a man walking his dog, and then suddenly the dog starts talking, that's a big surprise. It makes the story funny.
A man goes to the doctor. He says, 'Doctor, you've got to help me. I keep thinking I'm a deck of cards.' The doctor replies, 'Sit down and I'll deal with you later.'
A man went to the dentist. The dentist said, 'You need a filling.' The man replied, 'No, I don't like fillings. I only like ice cream.' The dentist was so amused that he almost dropped his drill. Then the man added, 'Can you put ice cream in my tooth instead?'.
A guy walked into a library and asked the librarian if they had any books about paranoia. She whispered, 'They're right behind you!' and he jumped in fright.
Once upon a time, there was a little mouse. He was very brave but also a bit too curious. One day, he saw a big, shiny object on the table. It looked like a huge piece of cheese. He climbed up the table leg and when he reached the top, he realized it was just a yellow plastic toy. He was so disappointed that he accidentally knocked it over and it rolled off the table. He then quickly ran away, thinking the 'cheese' was chasing him. It was really a funny sight to see the little mouse scurrying around in panic.