What happens to your Social Security number when you die? Why are ground nut listed as an ingredient in plain M&Ms? Why is Barbie's hair made out of nylon, but Ken's hair is plastic? What makes up the ever-mysterious "new-car smell"? Pop-culture guru David Feldman demystifies these topics and so much more in Do Penguins Have Knees? - the unchallenged source of answers to civilization's most perplexing questions. This book arms readers with the knowledge about everyday life that encyclopedias, dictionaries, and almanacs just don't have.