There are three boxes: one contains only apples, one contains only oranges, and one contains both apples and oranges. Each box is labeled incorrectly. You can pick one fruit from one box. Which box should you pick from to correctly label all the boxes?
Answer: C. The box labeled 'Apples and Oranges'
Since all boxes are labeled incorrectly, picking from the box labeled 'Apples and Oranges' will give you a fruit that will help you correctly identify all boxes.