Only a few students decided to join the outing to the beach. (Here, "few" refers to a small number of students.)
Example 2: Time
I haven't had a few minutes to myself all day. (In this example, "few" refers to a brief period of time.)
Example 3: Quantity
The company has a few employees working on the project full-time. (Here, "few" is used to describe a small number of people.)
Example 4: Quality
The new restaurant has a few high-quality reviews online. (In this case, "few" is used to describe a limited number of positive reviews.)
Example 5: Contrast
I used to go to the gym every day, but now I only go a few times a week. (In this example, "few" is used to emphasize the contrast between the past and present frequency of gym visits.)