Which of the following mixtures can be separated by the method of filtration?

In the process of filtration, two insoluble components are separated by the use of a filter paper. Since, salt and sugar are soluble in water,  so the salt-water and sugar-water mixture cannot be separated using the filtration method. Moreover, filtration is incapable of separating two gases. Hence, oxygen and nitrogen cannot be separated by filtration. Seeds are insoluble in water, so they can be filtered off from the juice using a filter paper.