You didn't cheat did you?...
        I mean you did count the F's only once?

OK then... there are six F's in the sentence. SIX... 6!

And here is the ratings of the different counts:
- If you found three F's, youre a person of average intelligence.
- If you spotted four, you're above average.
- If you got five, you can turn your nose at most anybody.
- If you found six, you are bloody genius.
- If you found two or less, I suggest a visit to your optician.

Here is the same text, but we highlighted the F's for your review!

FINISHED FILES ARE THE RE-
SULT OF YEARS OF SCIENTIF-
IC STUDY COMBINED WITH
THE EXPERIENCE OF YEARS.