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Solution to: Quick Eye Exam

How many letters F did you count? Three? Wrong, there are six! It is no joke! Read again:

         FINISHED FILES ARE THE
         RESULT OF YEARS OF SCIENTIFIC
         STUDY COMBINED WITH THE
         EXPERIENCE OF YEARS

Almost everyone guesses three. Why? It seems that the brain cannot correctly process the word "OF". The letter F usually makes the "f" sound, like in "fox". However, in the word "of", it makes a "v" sound. Somehow, your brain overlooks the word "of" as it scans for the sound of "f".


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