@contrex,
I'm a foreigner too and I got 10/12. These are the ones I got wrong.
1.On which of these activities does the U.S. government currently spend the most money?
You answered "Interest on the national debt"
The correct answer is "Social Security"
2.Who is the current chair of the U.S. Federal Reserve Board?
You answered "Alan Greenspan"
The correct answer is "Janet Yellen"