To request information or an answer from someone. She asked him about his plans for the weekend.
To request permission or an opportunity to do something. He asked to leave the meeting early.
To invite someone to do something or go somewhere. They asked her to join them for dinner.
To inquire about the price or availability of something. He asked how much the car would cost.
To demand or set a specified price or terms for something being sold. They're asking $500 for the old piano.
To require or demand (something such as effort, skill, or money). Cleaning the entire house in one afternoon is asking too much of anyone.