"A sailor from US Frigate #539 was sent ashore to a grocery store and told to purchase at least two of each of the following citrus fruits: limes at 19c each; lemons at 29c each; oranges at 39c each; and grapefruits at 49c each. The total cost was to be exactly $5.39 to the penny. How many of each did he need to buy?" There is at least one correct solution.
For Advanced Puzzle Solvers (APSs), after you get all solutions to the regular puzzle: "What is the size of the smallest box (inside volume of a rectangular parallelpiped) in which these fruits can be carried back to the ship?" (Assume all fruit are perfect spheres with the following diameters: limes = 1 inch, lemons = 2 inches, oranges = 3 inches, grapefruit = 4 inches)