Nebiat Habtemariam can relate. At the 1997 world championships, the 18-year-old Eritrean runner suffered the longest wardrobe malfunction of all time during a qualifying heat for the women's 5,000-meter run. Lacking her own gear, Habtemariam asked to borrow another runner's red singlet for the race. What she failed to borrow was a sports bra. She spent her 18 minutes on the track with one breast perpetually in view. She didn't leave her hotel room for the rest of the week. But the run of shame wasn't the end of Habtemariam's story. She kept running -- in two more world championships, three Olympic Games and countless other competitions. Last year she was the third woman to finish the Milano City Marathon, her lime-green and blue sports bra securely in place. It was further confirmation that the world's best athletes are those who have managed to transcend the limits -- and the addendums -- to the human body. Or as Rousey put it about her one-two punch of neutralizing Carmouche and her little black bra at the same time: "Multitasking!"
In the week before Christmas, we opened up the Explainer mailbag and dumped the dregs into a bucket of the sordid, silly questions sent in by our readers—all the ones the Explainer was unwilling or unable to answer in 2012. These included puzzlers such as Has anyone ever actually used a falling chandelier to take someone out? Or How long could a lactating woman survive drinking her own breast milk? In accordance with tradition, we invited you to pick the one that's most deserving of an answer. More than 66,000 readers registered their choice, and the winner is addressed below. But first, the runners-up: