To weigh a 40-pound object with four weights – 1, 3, 9, and 27 pounds, the merchant placed all of the weights on one side of the scale and the object on the other side. But how did he weigh 5 pounds?
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Clock Struck 21
One minute ago, a clock that strikes only the hours just finished striking an hour. If the clock has struck a total of 21 in the last 2.5 hours, what hour did it just finish striking?
Riddle AnswerSame Amount
What number gives the same amount when it is added to 3 as when it is multiplied by 3?
Riddle AnswerRungs of a Ladder
The rungs of a 10 foot ladder attached to a ship are 1 foot apart. If the water is rising at the rate of one foot an hour, how long will it take until the water covers over the ladder?
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