[Q]: Here's a question and a few possible answers:   Q: A mail service will often drop packages off, but also do what with them? Possible A: open them, lift up, picking up, catch, pick up  Why is "pick up" an answer aligned with human common sense?
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[A]: pick up definition and meaning


[Q]: Here's a question and a few possible answers:   Q: Where might you go to buy silk? Possible A: expensive clothing, garments, chinatown, downtown, nightgown  Why is "chinatown" an answer aligned with human common sense?
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[A]: chinatown is the place to buy silk


[Q]: Here's a question and a few possible answers:   Q: What do use coal to light? Possible A: fire, (this question makes no sense), underground, stocking, fluid  Why is "fire" an answer aligned with human common sense?
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[A]: fire comes from coal


[Q]: Here's a question and a few possible answers:   Q: If you get something for no cost you get that thing what? Possible A: retail markup, revenue, income, for free, benefit  Why is "for free" an answer aligned with human common sense?
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[A]:
free things have no cost.