1.   It was a cupboard used by the cleaners that contained a number of other odds and ends.

2.   Moreover, even these poor areas do, in fact, contain substantial numbers of moderately affluent people.

3.   Our present theories contain a number of quantities, like the size of the electric charge on a particle.

4.   The book contains a number of excellent reviews on a wide range of important topics.

5.   The film was banned because it contained a number of extremely violent scenes.

6.   The museum contains a number of original artworks.

7.   The Novel contains a number of important historical accidents which reveal the heavy hand of the author.

8.   The report contained a number of factual errors.