Based on a Venn diagram where the intersection of cuboids and cubes is 21 + 15 = 36, and the region representing cylinders that are not cuboids is 31 + 29 = 60, which of the following statements is/are correct? I. The number of cuboids which are cubes is 36. II. The number of cylinders which are not cuboids is 31.

In a Venn diagram, if a circle represents 'artists', a triangle represents 'doctors', and a rectangle represents 'players', which region represents individuals who are only both artists and doctors but not players?

In a Venn diagram containing three intersecting circles representing 'Women', 'Employed', and 'Married', let the region for 'Women who are employed but not married' be denoted by the number 2. Which number represents this specific portion?