Roger Craig holds the record for most money won in a single game of "Jeopardy ... and find out which subjects deserve the most focus. Create mental images. Don't just learn the word arabesque ...

The below contains MAJOR spoilers for the Monday, March 17, episode of Jeopardy!] Alex DeFrank returned for his second game of Jeopardy! trying to get his second win under his belt with $42,402 ...