Stitched into this patchwork quilt is a puzzle--one that will test the sharpness of everyone in your family.  At a glance, you can see a mosaic of colors and shapes.  But now look more carefully.  Using the black stitched borders, how many perfect squares of any size can you find?  Remember, a square means that every side has to be of equal length.  You'll find the answer below.

(from RDCHALLENGE  by Will Shortz
printed in Reader's Digest - January 2003)

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Answer:  The quilt has 41 squares (24 with 1-unit sides; 8 with 2-unit sides; 6 with 3-unit sides; 1 with 4-unit sides; 1 with 5-unit sides; and 1 with 6-unit sides).