Lynn likes grapes but not potatoes. She likes squash but not lettuce, and she likes peas but not onions. Following the same rule, will she like pumpkins or apples?

Why this works

This riddle is a fun exercise in pattern recognition! Lynn's preferences reveal a hidden rule: she only likes foods that grow on vines. Grapes and squash both grow on vines, while potatoes, lettuce, and onions do not. Therefore, when we consider pumpkins (which do grow on vines) and apples (which grow on trees), it becomes clear that Lynn will like pumpkins but not apples!