In this segment of Monday's Where the Money Is, Motley Fool banking analysts Matt Koppenheffer and David Hanson do their worst to stump each other on this week's Stock Quiz. The questions focus on just how bad AIG's (AIG -0.43%) combined ratio got in the 90's, how much of Citigroup (C 0.05%) CEO Michael Corbat's salary depends on the performance of the bank, which bank reduced it's share count more in 2013 between Bank of America (BAC -0.73%) and Wells Fargo (WFC -0.57%), and what kind of shape the National Bank of Greece (NBG.DL) ended up in at the end of last year.