How many miles long is a marathon?

Complete the proverb: "A man's home is his..."? The initials CDG, those of a famous Frenchman, identify the main airport of which city? Which man's name is also a word for a float on a fishing line? A map of Europe on which country's 1997 1,000-lire coin had errors such as showing Denmark as part of Germany? What word describes a marauding linebacker and is also the surname of CNN's Wolf? A March 17, 1906 speech by which president popularized the term "muckrake" for investigative journalists? A March 1845 act of Congress gave government subsidies to steamships that carried what? In 2002, news stories followed which bacterial toxin months after the first deliberate release of it in the U.S.?