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Logic Puzzles
 
 


These Visual Logic Puzzles, which are based on traditional logic and lateral thinking, are accompanied by original artwork.  Various household items and a pencil and paper may be necessary to solve these tricky spatial puzzles.



     

     
  1. COINS:

    In three moves, rearrange the coins so that the three quarters are together and the two pennies are together with no empty space in between each coin.  At the end of each move, the coins are always in a line as in the original configuration.  Each move consists of moving two adjacent coins at one time.
    solution


    QuarterPennyQuarterPennyQuarter          



     

     
  2. CIRCLES:

    Using six contiguous straight lines, connect all of the sixteen circles shown below.
    solution



    Circles          


     

     
  3. TEAPOTS:

    If teapot A holds 32 ounces of tea, about how many ounces does teapot B hold?
    solution

    Teapots          


     

     
  4. MISSING SYMBOL:

    Complete the square logically.
    solution



    Missing Symbol          


     

     
  5. TEN MATCHES:

    Remove six matches to make ten.
    solution


    Ten Matches          


     

     
  6. TRACING LINES:

    How is it possible to trace this design in one continuous movement without crossing a line on the way?
    solution


    Tracing Lines          


     

     
  7. NINE NUMBERS:

    Place the numbers 1 through 9 in the circles below, such that each side of the triangle adds up to 17.
    solution


    9 Numbers          


     

     
  8. MOVING HOLE:

    By cutting this square piece of paper into two and only two pieces (and rearranging those pieces), how is it possible to move the hole into the center of the square?
    solution


    Hole          


     

     
  9. CONNECT THE DOTS:

    How many squares can you create in this figure by connecting any 4 dots (the corners of a square must lie upon a grid dot).
    solution


    Squares          


     

     
  10. TRIANGLES:

    How many triangles are located in the image below?
    solution


    Triangles          


     

     
  11. GEARS:

    Gears A and D have 60 teeth each, gear B has 40 teeth, and gear C has 20 teeth.  Suppose that gear B makes twenty complete turns every minute, explain the relative speed of gears A and D?
    solution


    Gears          


     

        
  12. FOUR TRACKS:

    Four rollerbladers excercise around separate circular paths; each path is one third of a mile in length.  They start simultaneously at the black spots, with speeds of six, nine, twelve, and fifteen miles per hour.  By the end of the 20 minute workout, how many times will they have simultaneously returned to the spots where they started?
    solution


    4 Circles          


     

  13. GOLFBALLS:

    Rearrange three golfballs so that the triangular pattern points down instead of up.
    solution


    Golfballs          




 
 

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