what are the top 20 world banks for 2006?

Answer 1

These are the top 10:

Citigroup, HSBC, Bank of America, JP Morgan Chase, Mitsubishi-UFJ Financial Group, Credit Agicole, Royal Bank of Scotland, Sumitomo Mitsui, Mizuho, and Santander Central Hispano.

http://www.economist.com/markets/indicators/displaystory.cfm?story_id=7141354

Euromoney lists the largest 250 banks in the world, but you need to be a subscriber to access the info:

http://www.euromoney.com/article.asp?ArticleID=1050913&LS=ewiki

Answer 2

I'll start you off with the top 2. You have to do the rest of your homework yourself.

Citicorp
Bank America