Judicial review such as that which exists in America is relatively uncommon among the world's democracies.

Louis Farrakhan's estimate of the number of attendees at the Million Man March differed from the National Park Service estimate by approximately a factor of __________

a. four b. two c. 10 d. zero

How many presidents have been unmarried while serving as president?

a. none b. one c. two d. four e. six