Geeky·Updated on Jul 22, 2019. Posted on Jul 22, 2019How Much Random Penis Knowledge Do You Have?Get your head in the game.by Pablo ValdiviaBuzzFeed StaffFacebookPinterestTwitterMailLink Getty Images 3.9 inches Correct Incorrect 3.9 inches 4.8 inches Correct Incorrect 4.8 inches 5.1 inches Correct Incorrect 5.1 inches 6.2 inches Correct Incorrect 6.2 inches Correct! Wrong! According to a 2014 study of 1,661 men, the average erect penis length was 14.15 cm, or 5.1 in. Getty Images 4-7 minutes Correct Incorrect 4-7 minutes 9-13 minutes Correct Incorrect 9-13 minutes 15-20 minutes Correct Incorrect 15-20 minutes 25-35 minutes Correct Incorrect 25-35 minutes Correct! Wrong! People with penises have four to five erections a night during REM sleep and they each last as long as a half-hour sitcom! Getty Images Image: Via Getty Images Correct Incorrect Via Getty Images Via Getty Images Image: Via Getty Images Correct Incorrect Via Getty Images Via Getty Images Image: Via Getty Images Correct Incorrect Via Getty Images Via Getty Images Image: Via Getty Images Correct Incorrect Via Getty Images Via Getty Images Correct! Wrong! According to this chart by UC Santa Barbara, "The frenulum is the small strip of skin that runs from the glans to the shaft" and "is considered to be one of the most sensitive places on the penis." Getty Images 12 miles per hour Correct Incorrect 12 miles per hour 13.35 miles per hour Correct Incorrect 13.35 miles per hour 28 miles per hour Correct Incorrect 28 miles per hour 32.4 miles per hour Correct Incorrect 32.4 miles per hour Correct! Wrong! Yes, it's that fast! Getty Images Endorse Correct Incorrect Endorse Discourage Correct Incorrect Discourage Neither Correct Incorrect Neither Correct! Wrong! Because the procedure is not essential to a child's current well-being and "existing scientific evidence is not sufficient to recommend routine circumcision," they can not endorse or discourage the procedure. Getty Images Tail Correct Incorrect Tail Muscle Correct Incorrect Muscle Organ Correct Incorrect Organ Hard Correct Incorrect Hard Correct! Wrong! The word was first recorded in 1685–95 and comes from the Latin word "pēnis." Getty Images Mint and chocolate Correct Incorrect Mint and chocolate Eucalyptus and french fries Correct Incorrect Eucalyptus and french fries Jasmine and chocolate chip cookies Correct Incorrect Jasmine and chocolate chip cookies Pumpkin pie and lavender Correct Incorrect Pumpkin pie and lavender Correct! Wrong! Experimenters at Chicago’s Smell and Taste Treatment Research Foundation found that the combined odor of lavender and pumpkin pie produced a 40% increase in penile blood flow. Getty Images True Correct Incorrect True False Correct Incorrect False Correct! Wrong! The skin from a postage stamp-sized foreskin can later be used for skin grafts. Getty Images Yes Correct Incorrect Yes No Correct Incorrect No Correct! Wrong! Deaths that are the result of spinal cord injuries are more likely to result in a post-mortem erection. Getty Images Height Correct Incorrect Height Middle finger length Correct Incorrect Middle finger length Shoe size Correct Incorrect Shoe size Shoulder width Correct Incorrect Shoulder width Correct! Wrong! Researchers looked at many possible correlations and found that the strongest and most consistent correlation was between height and erect length or flaccid, stretched length. Though this was the strongest, there is no guarantee that this is always the case.