Logical Venn Diagram Questions

Which one of the following diagrams represent the correct relationship between DOCTORS, SURGEONS and NURSES

In the given figure, how many students study only 2 subjects?

Identify the diagram that best represents the relationship among the given classes.
Food Supplement, Bournvita, Horlicks

Identify the diagram that best represents the relationship among the given classes.
Football, Volleyball, Outdoor Games, Carrom.

Which of the following diagrams correctly represents elephants, wolves, animals?

Which one of the following diagram represent the relationship among Parliament, Council of Ministers and Prime Minister?

Options:

Identify the diagram that best represents the relationship among the given classes.
Brain, Cerebrum, Liver, Human body

Which of the following correctly represents the relationship between the following classes? A) Bell B) Water C) Brass