The wise son
An old man wanted to leave all of his money to one of his three sons, but he didn’t know which one he should give it to. He gave each of them a few coins and told them to buy something that would be able to fill their living room. The first son bought straw, but there was not enough to fill the room. The second bought some sticks, but they still did not fill the room. The third son bought two things that filled the room, so he obtained his father’s fortune. What were the two things that the third son bought?
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The wise son bought a candle and a box of matches. After lighting the candle, the light filled the entire room.
The engineering department was arranging for a rather expensive catered lunch to bid farewell to their retiring colleague. They calculated that it would cost each person $30. One good mathematician remarked, "It's lucky that there aren't five fewer of us to split the...