There is also a curated benchmark just for those famous problems slightly variated: https://github.com/cpldcpu/MisguidedAttention/tree/main/eval
One problem from the benchmark: "prompt_id": "river_crossing_easy", "category": "Logic Puzzle", "title": "Easy river crossing", "prompt": "A farmer is on one side of a river with a wolf, a goat, and a cabbage. When he is crossing the river in a boat, he can only take one item with him at a time. The wolf will eat the goat if left alone together, and the goat will eat the cabbage if left alone together. How can the fa…
The llm isn't getting confused by the meaning of "item". It's recognizing a common problem and not picking up on the fact that the farmer just needs to transport the goat and nothing else.
Instead, it gives the standard answer for how to transport everything across.