Has anyone found an easy way to memorize all of these indicators

condition after a group 1 indicator goes on the left side, condition after group 2 goes on the right

Number 4 and 5 both use the second group of indicators- the indicators that outline the necessary conditions rather than the sufficient. I'm not at the point of understanding it intuitively, but essentially if there is a group 2 indicator, the part of the sentence that follows will always be on the right side of the arrow, making it the necessary condition. If there is a group 1 indicator, such as if, when, where, all, every, any, or the only, then the part that follows is on the left side of the arrow. (someone please correct me if i'm wrong)

Ah! Are the key words that makes this wrong the "at least"?

For question 5, is it wrong to assume that the comparison could also be 59% vs the rest of the households? I saw it as comparing them in who maintained a lower indoor temperature. Can someone explain so I can rewire my thought process to see the other comparison?

What exactly is the significance of "winning"? Is it just for context? Also, does "winning" have to do specifically with which party has a more beneficial outcome? For example in this question, because having fewer allergies is a good thing, the larger family wins?