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RECREATIONS IN MATHEMATICS
Ask a person to multiply their age by 3, add 6 to the product and then divide the new sum by three and tell you the result. Subtract 2 from that result and you have their age.
Think of any number, multiply it by 2, then add 4, multiply by 3, divide by 6, subtract the number you thought of, and the result will be 2.
At a humble inn where there were only 6 rooms, seven travellers applied for lodging, each insisting on having a room to himself. The landlord put the first man in room No.1 and asked one of the other men to stay there also for a few minutes. He then put the third man in room No.2, the fourth man in room No.3, the fifth man in room No.4 and the sixth man in room No.5. Then returning to room No.1 he took the seventh man and put him in room No.6. Thus each man had his own room.
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