Just to see how good you are at checking documents, see below for the cute trick of the day.
This is a very interesting test. There are no tricks but don't cheat.
Read this sentence once only to yourself:
FINISHED FILES ARE THE RE-
SULT OF YEARS OF SCIENTIF-
IC STUDY COMBINED WITH
THE EXPERIENCE OF YEARS.
Now go back and count aloud how many F's are in that sentence. Count them only once: Do Not Go Back And Count Them Again.
Click here for the answer