A 2009 study recommended treating some addicts with diacetylmorphine, the active ingredient in which drug?

A 2009 daffodil show was held in which California county, better known for its celebrated jumping frog? A 2009 Hubble repair mission replaced six nickel-hydrogen what, which had lasted 13 years longer than planned? A 2009 silver dollar honoring which Frenchman has "BRL" in raised dots so the blind can read it? A 2009 U.S. stamp marking 50 years of statehood for which state showed a dogsledder? A 2009 Time poll, taken after Walter Cronkite's death, named which comedian America's most trusted newscaster? A 2009 Ig Nobel Prize went to research showing that cows with names give more of what? In 2010, which language invented by linguist Paul Frommer for a blockbuster film was called "the new Klingon"? A 2010 survey found nearly half of Germans wanted to give up the euro and bring back which currency?