"First break the problem down into known facts, then pull relevant world knowledge, then bring it all together to assess the problem from multiple angles and make a conclusion. Do not immediately just use the first obvious conclusion."
You're gonna get a lot better responses. I suspect this is more of a "look! LLMs make bad kneejerk responses when we try to trick them from what they were expecting!" rather than "Look! They aren't even smart reasoners, they can't even figure out these problems without memorizing!"
They do memorize. But that cuts both ways - making problems very close to the memorized one mess with their perception, the same way humans will instinctually respond to something that looks like a face before stepping back and assessing.