How long are "brief statements of research and teaching interests"? I'm applying for a computer science tenure-track assistant-professor position in the U.S. Some job announcements ask for brief statements of research and teaching interests. How long is this "brief" typically? I.e., how long is a


a brief research statement
a brief teaching statement?


If that helps, you may assume single-spaced, 12-point Times New Roman font, 1.25-inch margin on letter-size paper.

(An aside: such job announcements remind me of cake recipes containing "add nuts according to your taste". Such a phrase always drove me crazy. Does it mean 1 g, 5 g, 25 g, 125 g, or 625 g of nuts? I am in great difficulty when I am reading "add 1 cup of milk, 3 or 4 apples, and cinnamon according to your taste". My gosh, how large is your cup and how big are your apples? Sour ones or sweet ones? And how much cinnamon do I really like? Having said that, when seeing brief above, I am feeling hopelessly lost.)
Coming from pure math at a research institution, typical lengths are 1-2 pages for teaching statements and 4-6 pages for research statements.  However, some people go overboard (e.g., including loads of teaching evaluations) or write long research statements (8+ pages) targeted at experts.  I would interpret "brief" to mean: don't do this.  Moreover, if the school is not much of a research school, I would recommend the research statement being closer to 2-3 pages.

Incidentally, I don't think having page lengths written into the job ads is a good thing.  This isn't a high school assignment.  You are free to say how much you want to, in what format you want to.  Some 2-page statements take longer to read than 4-pages ones, depending on how they're written (bullet points, figures, references,  etc).