A WEIGHTY PROBLEM

John had a taste for fish. One day, John went to his friend's house to ask for a recipe for fish. His friend was well known for his fish dished and dutifully supplied John with the recipe. John happily proceeded to the market where he bought some fish. He loved fish very much and wanted t o eat it as often as he could. But every time he bought fish he could not eat it, because his wife claimed the cat had taken the fish and fled. One day John became incensed. “Woman, now I know I bought two kilos of fish so where is it?” said his wife. “The cursed cat took it and fled.” While she was telling him this story, John noticed that the cat was in the room. John picked up the cat, carried it over to a pair of scales and proceeded to weigh it. “This cat weighs exactly two kilos,” he exclaimed. “And the fish I brought also weighed two kilos. So tell me, if this is the fish then where is my cat and if this is the cat, then I want my fish.