Venn Diagram Questions

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:

All rectangles are trapeziums.

All circles are trapeziums.

Conclusions:

I. Some rectangles being circles is a possibility.

II. Some trapeziums are rectangles.

In this question, three statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.
Statements:

Some tables are chairs.

Some chairs are beds.

All beds are wardrobes.

Conclusions:
I. No table is a wardrobe.
II. All tables are wardrobes.

Which of the following Venn diagrams correctly represents the relationships among the classes:
Products, Factory, Machines

Study the given description carefully and answer the question that follows.In a Venn diagram representation consisting of three geometrical shapes (a Circle representing 'Teachers', a Triangle representing 'Females', and a Rectangle representing 'Married' people):The number inside the Triangle (Females) only is $11$.The number inside the Circle (Teachers) only is $8$.The number inside the Rectangle (Married) only is $12$.The intersection of Triangle (Females) and Circle (Teachers) only (excluding the Married rectangle) contains the number $9$.What is the number of female teachers who are NOT married?