This is so cool.
Read this sentence:

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

Now count ALOUD the F's in that sentence. Count them ONLY ONCE: do not go 
back and count them again. See below...

ANSWER:

There are six F's in the sentence. One of average intelligence finds three 
of them. If you spotted four, you're above average. If you got five, you 
can turn your nose at most anybody. If you caught six, you are a genius.  
There is no catch.  Many people forget the "OF"'s.  The human brain tends 
to see them as V's and not F's. Pretty weird, huh?  It fools almost 
everybody.

Robert

The limousine was taking the beautiful raven-haired model to the airport.
Halfway there, the front tire went flat.  The model said, "Driver, I don't 
have time to wait for road service.  Can you change it yourself?"  
The driver said, "Sure."  He got out of the car and proceeded to change 
the tire, but couldn't get the wheel cover off.  The model saw him 
struggling and asked, "Do you want a screwdriver?"  
He said "Sure! But, first I have to change this tire."

Shortly after being assigned to a new base, a Lieutenant and his wife were 
invited to the Colonel's home for an evening of bridge. The Lieutenant was 
partnered with the Colonel's wife and vice versa. After many hands, the
Lieutenant excused himself to use the toilet, but accidentally left the 
door ajar. When the sound of splashing echoed through the family room, his 
wife was greatly embarrassed and attempted to apologize, to which the
Colonel's wife smiled demurely, "Don't worry about it; this is the first 
time all evening that I've been able to tell what he has in his hand." 

Kid: Teacher can I go to the bathroom?
Teacher: You have to say your ABC's first
Kid: Ok,
a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,q,r,s,t,u, v,w.x.y, and z
Teacher: Where's the p?
Kid: It's running down my leg!!

Sent by Jenna

A young blonde girl goes to the doctor for a physical. The doctor
 puts his stethoscope up to the girl's chest and says, 'Big breaths...'
 The girl replies, 'Yeth and I'm not even thixteen.'