THE COW PUZZLE.

Tell the company that seven cows were walking in a straight line into a narrow door, and say to them, "If you should ask the last cow, 'How many pairs of horns are before you?' what would she reply?"

Some will answer, "One pair," and some, "Seven pairs," but after puzzling them for a while, you can reply, "In the opinion of most scientists, she would not say anything, for she could not speak, poor thing!"