if u answered 16.. guess ur a genius type of person.. this is proven by scientist and optometrists.. normal average persons cant process the word "OF".. if your eyes can detect this word easily, then ur brain is extra active and can think easily.. actually, im d one who made this sentence.. iv tried it if it will work.. and positively, it does.. just go to this forum for the standard test.. ALZHEIMER 's EYE TEST: rate your intelligence.. this test works once only..