Context: Each code point has a single General Category property. The major categories are: Letter, Mark, Number, Punctuation, Symbol, Separator and Other. Within these categories, there are subdivisions. The General Category is not useful for every use, since legacy encodings have used multiple characteristics per single code point. E.g., U+000A <control-000A> Line feed (LF) in ASCII is both a control and a formatting separator; in Unicode the General Category is "Other, Control". Often, other properties must be used to specify the characteristics and behaviour of a code point. The possible General Categories are:

Question: What are the General Categories of Unicode?
Answer: Letter, Mark, Number, Punctuation, Symbol, Separator and Other

Question: What type of use is the General Category not helpful for?
Answer: not useful for every use, since legacy encodings have used multiple characteristics per single code point

Question: What is the General Category in Unicode?
Answer: Other, Control

Question: How many General Category properties does each code point have?
Answer: a single General Category property

Question: What exists within the main Unicode categories? 
Answer: subdivisions

Question: What subcategories are found in the category Other?
Answer: Unanswerable

Question: Which category can always be used?
Answer: Unanswerable

Question: Why is Symbol not useful for all instances?
Answer: Unanswerable

Question: What is the title of the Separator category in Unicode?
Answer: Unanswerable

Question: "Other, Symbol" represents what unicode category?
Answer: Unanswerable