There are 20 shingles in a bundle of GAF/ELK Timberline 30 year shingles. This can vary with the style, or "profile" of the shingles somewhat, but is the most common number.
And Guest, you don't ask questions in the answer section of another question. Start a new question topic. Also you will need more info to get an answer anyway, such as how many years guarantee you want on those shingles, 25, 30, Lifetime, and what manufacturer, what part of the country, etc.