What is referred to by 'a complete donut center'?

Based on the clue 'a competitor like the 2 other contestants', what is the answer? What is associated with: a complaint by newt gingrich about outside income led to this house speakers 1989 resignation? Based on the clue 'a complaint of sob means shortness of this', what is the answer? Based on the clue 'a complete dictionary or the river kwai after the ...', what is the answer? Based on the clue 'a complete renovative beauty treatment mine needed...', what is the answer? Based on the clue 'a complete sentence needs a predicate one of thes...', what is the answer? What is associated with: a completely different title to this often sung 1893 classic is good morning to all? Based on the clue 'a complication is a watch feature showing anything...', what is the answer?