Based on the clue 'a quarter of a million people crowded into this la...', what is the answer?

Based on the clue 'a quantity such as the set of all natural numbers ...', what is the answer? Based on the clue 'a quarrel or a failure to comprehend correctly', what is the answer? What is associated with: a quarrel that began with the fencing judging at the 1924 olympics was settled by an actual on… Based on the clue 'a quarrelsome woman one might even say shes vulpin...', what is the answer? Based on the clue 'a quarterback minnesota vikings no 10', what is the answer? Based on the clue 'a quarterback san francisco 49ers no 16', what is the answer? Based on the clue 'a quatro formaggi pizza is topped with this many d...', what is the answer? Based on the clue 'a queen ant of one species coats these with a pher...', what is the answer?