What is associated with: continent columbus thought he was going to when he set sail in august 1492?

Based on the clue 'contestants are hooked up to a polygraph asked in...', what is the answer? Based on the clue 'contestants can you hear me then respond with the...', what is the answer? Based on the clue 'contestants must complete a mission in order to ge...', what is the answer? Based on the clue 'continent between 35 85 degrees west longitude', what is the answer? Based on the clue 'continent from which indians ancestors came to ame...', what is the answer? Based on the clue 'continent on which the densest tallest most valua...', what is the answer? Based on the clue 'continent on which the highest recorded air temper...', what is the answer? Based on the clue 'continent on which youd find the mesabi range', what is the answer?