In a Venn diagram, a triangle represents chefs, a circle represents cafes, a pentagon represents assistant chefs, a rectangle represents restaurants, and a square represents hotels. What does the number '8', which is located in the intersection of the triangle, rectangle, square, and pentagon but outside the circle, represent?

In a certain Venn diagram, the circle represents illiterate people, the square represents married people, and the triangle represents unemployed people. If the region representing married people who are unemployed but not illiterate has a value of 4, how many married people are unemployed but not illiterate?

In a certain representation, a square represents people who like cricket, a circle represents people who like basketball, a rectangle represents people who like tennis, and a triangle represents people who like hockey. Which region represents people who like basketball, tennis, and hockey, but do NOT like cricket?