Earlier this month, the term “zombie apocalypse” began flooding the digital space, prompted by a rash of bizarre national incidents involving gruesome cannibalism and flesh eating/throwing. The theme was so prevalent that the Center for Disease Control and Prevention felt compelled to ease people’s fears with an official statement.

So why then are sales of “zombie bullets” on the rise? Clever marketing. Even the CDC(Center for Disease Control & Prevention) is getting in on the act. Preparedness 101: Zombie Pandemic Buy your t-shirt here. Oh and, in case you are away from home, here is the android app.

According to multiple sources, Post-it Notes were test-marketed in four cities in 1977, with the national roll-out following in 1980.Apart from the technicality that the product originally was sold under the name “Press & Peel” (which would be a stretch even if the category were “brands” instead of “inventions”), “C” was the correct answer. Therefore, the contestants should have lost only $80,000 (not $800,000) on the question.