Meaning of 幾人か in Japanese

The women's college had a very small car park, and as several of the teachers and students, and many of the student's boyfriends, had cars, it was often difficult to find a place to park.

Some of the students were from Asia and the others were from Europe.

Pretty soon along came to the village some strangely dressed people who called themselves surveyors; and they surveyed a line in front of my grandmother's little house.

You can fool all the people some of the time, and some of the people all the time; but you cannot fool all the people all of the time.