Candling is a technique used to inspect what?

Canals connect which 2,200-mile-long river to the Baltic, Black and White seas and to Moscow? Canberra designer Walter Burley Griffin worked for which American architect from 1901 to 1906? Cancun is a popular spot for which seasonal trip, as in the 2003 film "The Real Cancun"? Which insect-made substance was long used for fine candles because it burns cleanly? What was the first name of Grover Cleveland's daughter, born October 3, 1891, for whom the Curtiss company said it name… Which "Candy Man" singer began his career performing with the Will Mastin Trio? 1930s gangster Vincent Coll was known by what canine nickname? What canine term describes an eager, inquisitive news reporter?