Chaco Central, Chaco Austral and the Pampa de las Salinas are regions of which South American country?

In which Russian novel does Yuri meet and fall in love with Lara? Rich boy Oliver falls for poor girl Jenny in which 1970 first novel by Erich Segal? In which 1962 play do George and Martha, who have an imaginary son, entertain Nick and Honey? An ornate chairback is a hallmark of the furniture style named for which English cabinetmaker who died in 1779? Chad Michael Murray plays a modern-day Prince Charming in which 2004 film set in the San Fernando Valley? Which country ruled Chad as a colony until its independence in 1960? Chaim Weizmann was elected the first president of which country in February 1949? Which Swede chaired the board of Sweden's central bank in the 1940s and became UN secretary-general in 1953?