 a question stated that hydrogen was the  most abundant element in the Earths atmosphere instead of nitrogen.  Another question stated that Yahoo! is a web browser, instead of a  search engine. There are also spelling errors. One question asked,  "What is the main ingredient in tarter sauce?", instead of tartar in  questions and answers. Some of these errors have cost contestants  points. In one episode, a contestant was ruled incorrect for the  quote from Passenger 57, "Always bet on black", which the contestant  said. However, the shows answer was "Always bet on the black".