Based on the clue 'a sergeant may put the troops through a close orde...', what is the answer?

Based on the clue 'a sequence of 3 vowels creates this common french ...', what is the answer? Based on the clue 'a sequence of numbers or letters that opens a lock', what is the answer? Based on the clue 'a serene colonnaded 19th century edifice the bours...', what is the answer? Based on the clue 'a sergeant may be promoted to one', what is the answer? Based on the clue 'a series honoring dc comics super heroes included ...', what is the answer? What is associated with: a series of 1995 raids in california found dozens of thai immigrants working in these substand… Based on the clue 'a series of bulgarian stamps featuring types of th...', what is the answer? Based on the clue 'a series of canals links the volga river to this s...', what is the answer?