question: What sentence would provide a factual answer to this question: "A guy can hit another person if he"

answer: An example of hitting something is dropping an object onto that something

question: What sentence would provide a factual answer to this question: "What might a blind person likely use to what sandpaper is?"

answer: touch can be used for detecting texture

question: What sentence would provide a factual answer to this question: "A solution could be"

answer:
a solution is made of one substance dissolved in another substance