in the given diagram, circle T represents ‘teachers’, circle S represents ‘students’ and circle P represents ‘principals’. The regions are denoted by the numbers | to 7. Based on the diagram answer the question given below.

Select the region that represents principals who are both, teachers and students.

In the diagram given below, circle H represents honest, circle I represents intelligent, circle O represents optimistic, and circle P represents punctual persons.

How many are punctual, optimistic and honest but not intelligent?

In the Venn diagram given below, circle ‘P’ represents educated, circle ‘Q’ represents rural, circle ‘R’ represents hard working, and circle ‘S’ represents tactful persons.

How many urban persons are there who are educated and tactful but not hard working? 

In the diagram given below,
Square represents married, Circle represents educated, Triangle represents men, and Rectangle represents dancers.

How many educated unmarried men are there who are not dancers?

Choose the Venn diagram from the options which represents the correct relationship amongst the given classes:
Females, Mothers, Lawyers

Choose the Venn diagram from the options which represents the correct relationship amongst the given classes:
Chair, Furniture, Cup

Choose the Venn diagram from the options which represents the correct relationship among the given classes:
Authors, Professors, Men