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F - - - Photo of an F on a chalkboard - - - Original photo copyright Daniel Norman - - - Licensed through iStockphoto.com
Count the Fs

Try this test. It is pretty wild. 

Don't cheat. You will only cheat yourself.

It is a quick test. It is a lot of fun. And, I promise, there are no "tricks" to the test.

Read this sentence:
    
FINISHED FILeS ARe THE Re-
SULT OF YEARS OF SCIeNTIF-
IC STUDY COMBINED WITH
THE eXPeRIeNCe OF YEARS.

Now count the F's in that sentence. Count them only once, only once:   do not go back and count them again.

After you are done, scroll down to see the answer.

 

 

 

 

 

 

The answer is below.

 

 

 

 

 

 

 

 

 

Answer:    
There are six F's in the sentence.

The "average" person finds three.

There is no catch. Many people do not see the Fs in the word "OF". It has been argued that the human brain tends to see them as Vs and not Fs.

 

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I didn't originate all the stuff on this page. I got it, in part, from email and/or newsgroup postings. Efforts to identify a copyright holder were unsuccessful and it may be anonymous or in the public domain.  If you have any information to the contrary, and particularly if you are the original author or copyright holder, please notify me. To send me notices about this information, please see my DMCA page and also my Disclaimers, Copyrights & Other Legal Stuff page. This site seeks use permission from copyright holders and will not post if permission is denied. Whenever ownership information is obtained, I promptly correct the page. (See this example.) I edited, adapted and supplemented this particular version: Copyright © 1997-2014, James S. Huggins.

The extra text menu links (previously here) are being removed in the site redesign.
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This page created:
before
Wed, 16.Aug.2000

Last updated:
23:52, Wed, 12.Feb.2014

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count fs, count f, brain teaser, how many fs, f puzzle . . . count fs, count f, brain teaser, how many fs, f puzzle