Why did the octopus cross the road?
'Cause he was on the same side as a sushi restaurant.
Why did the octopus cross the road?
'Cause he was on the same side as a sushi restaurant.
The humor comes from the unexpected reason why the octopus crossed the road. Instead of a common reason like 'to get to the other side,' it's because there's a sushi restaurant on the same side. This is funny because octopuses are often used in sushi.