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  1. How many pluses should we put between the digits of 987,654,321 to get a total of 99, and where?

     

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  3. If a stopper and a bottle cost $2.10 and the bottle costs $2.00 more than the stopper. Then what does the stopper cost?

     

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  5.  

    A house has 6 stories, each the same height. How many times as long is the ascent to the sixth floor as the ascent to the third?

     

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  7. A man had a bar of lead that weighed 40 lbs., and he divided it into four pieces in such a way as to allow him to weigh any number of pounds from one to forty. What are the weights of the four pieces?

     

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  9. A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

     

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  11. If 6 doubloons are worth 1 1/2 ducats, how many ducats are 27 doubloons worth?

     

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  13. If 6 doubloons are worth 1 1/2 ducats, how many ducats are 27 doubloons worth?

     

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  15. How can you insert the numbers 1-9 inclusive each only, into the calculation to arrive at the answer 100? ( - ) + + - - - = 100

     

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  17. It takes the town hall clock 6 seconds to strike 4 o'clock in the afternoon. How long does it take to strike midnight?

     

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  19. 'How much is this bag of potatoes?' asked the man. '32lb divided by half its own weight,' said the green grocer. How much did the potatoes weigh?

     

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