Which country singer had a No. 1 hit with "Jesus, Take the Wheel" in 2006?

2005 was the 20th birthday of which restaurant chain's Blizzard, a soft-serve treat? Which playwright won the 2005 Nobel Prize in Literature for plays that uncover "the precipice under everyday prattle"? Which papal name did Cardinal Joseph Ratzinger take when elected pope in 2005? Which bestselling physician-author published "Marker," his 25th medical thriller, in 2005? Who released the 2006 parody song "White & Nerdy"? What type of mortgage, which despite its name carries a higher-than-usual interest rate, saw many foreclosures in 2006… Which Miami Heat guard was named NBA Finals MVP in 2006? The White House press briefing room, renovated in 2006, is named for which press secretary shot during the 1981 attempt…