Logical Puzzles
43.  Jack is twice as old as Jill, but in five years time he will only be one and a half times as old. How old are Jack and Jill now? 

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44.  If five men can build a house in 16 days, how long will it take just two men to build the same house, assuming all men work at the same rate? 

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45.  What letter comes next? A D H K O ? 

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