What is referred to by 'cot also in trig'?

Based on the clue 'costing 17 million making back less shanghai surp...', what is the answer? What is associated with: costing about 1 billion stretching from st johns to victoria it opened in 1962? Based on the clue 'costume designer edith head won her 8th final osc...', what is the answer? What is associated with: costume designers win awards named for irene sharaff who designed jet shark costumes for this… Based on the clue 'cotelette dagneau means cutlets or chops of this m...', what is the answer? Based on the clue 'cotopaxi the worlds highest active volcano rises j...', what is the answer? Based on the clue 'cotopaxi this countrys highest active volcano is o...', what is the answer? Which performer is associated with 'cotopaxi'?