I assume that this question is asking about proverbs and the standard bible that Protestants use. This is important because the Catholic bible contains seven extra books. The unknown variable in this question is that the question isn't clear as to whether it is asking how many proverbs are found in the entirety of scripture or how many proverbs are found only in the book of Proverbs.
The book of Proverbs is a book of wisdom that was mainly written by Solomon. He was blessed with vast amounts of wisdom by God, so it makes sense that he wrote the majority of the book. The book of Proverbs only contains a fraction of his wise sayings, because readers are told in 1 Kings 4:32 that Solomon spoke 3,000 proverbs. The book of Proverbs doesn't even come close to containing that many proverbs. The book contains only 31 chapters, and the most proverbs in any given chapter is 35. Most sources state that the number of proverbs contained within the book of Proverbs is 800. Each proverb is a short, wise sentence drawn from long experience, and the entire book essentially illustrates two schools of thought for its readers: the school for the wise and the school for the fools.