Madonna has sold more than 300 million records worldwide. The Guinness World Records acknowledged her as the best-selling female recording artist and the fourth best-selling act of all time, behind The Beatles, Elvis Presley, and Michael Jackson. According to the Recording Industry Association of America (RIAA), she is the best-selling female rock artist of the 20th century and the second top-selling female albums artist in the United States, with 64.5 million certified albums. Madonna is the most certified artist of all time in United Kingdom, with 45 awards from the British Phonographic Industry (BPI) as of April 2013. Billboard named Madonna as the top touring female artist of all time. She is also the highest grossing solo touring artist, with over $1.31 billion in concert gross, starting from the Blond Ambition World Tour; she first crossed a billion gross with The MDNA Tour. Overall, Madonna ranks third on all-time top-grossing Billboard Boxscore list, with just The Rolling Stones ($1.84 billion) and U2 ($1.67 billion) ahead of her. Madonna has been honored with 20 MTV Video Music Awards—the most for any artist—including the lifetime achievement Video Vanguard Award in 1986.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who named Madonna as the top female touring artist of all time?
Ah, so.. Billboard

From 1792, when the Mint Act was passed, the dollar was defined as 371.25 grains (24.056 g) of silver. Many historians[who?] erroneously assume gold was standardized at a fixed rate in parity with silver; however, there is no evidence of Congress making this law. This has to do with Alexander Hamilton's suggestion to Congress of a fixed 15:1 ratio of silver to gold, respectively. The gold coins that were minted however, were not given any denomination whatsoever and traded for a market value relative to the Congressional standard of the silver dollar. 1834 saw a shift in the gold standard to 23.2 grains (1.50 g), followed by a slight adjustment to 23.22 grains (1.505 g) in 1837 (16:1 ratio).[citation needed]
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many grains of silver did the Mint Act define the dollar as?
Ah, so.. 371.25

In 1803, an Act of Parliament, promoted by the East India Company, established the East India Dock Company, with the aim of establishing a new set of docks (the East India Docks) primarily for the use of ships trading with India. The existing Brunswick Dock, part of the Blackwall Yard site, became the Export Dock; while a new Import Dock was built to the north. In 1838 the East India Dock Company merged with the West India Dock Company. The docks were taken over by the Port of London Authority in 1909, and closed in 1967.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What dock company was destroyed by the 1803 Act?
Ah, so..
unanswerable