Based on the clue 'cornflower blue is the most prized color of this g...', what is the answer?

Based on the clue 'cornells dept of this study would prep you for the...', what is the answer? Based on the clue 'cornells medical website calls this study of the f...', what is the answer? What is referred to by 'corner header bicycle'? Based on the clue 'cornflake girl who wrote a song in which humpty du...', what is the answer? What is referred to by 'cornflower cerulean periwinkle'? What is referred to by 'cornflowers cornflower shirts'? Which performer is associated with 'cornhusker'? What is referred to by 'corniche silver shadow'?