Which one of the following Venn diagrams best illustrates the three classes: rhombus,quadrilaterals and polygons?

Which of the following diagrams correctly represents Elephants,Wolves,and Animals?

Consider the Venn diagram given below. The numbers in the Venn diagram indicate persons reading the newspapers. The diagram is drawn after surveying $50$ persons. In a population of $10,000$,how many can be expected to read at least two newspapers? Choose the correct answer from the following:

In a dinner party,both fish and meat were served. Some ate only fish and some only meat. There were some vegetarians who did not accept either. The rest accepted both fish and meat. Which one of the following logic diagrams correctly reflects the above situation?

Choose the Venn diagram which best illustrates the three given classes: Machine,Lathe,Mathematics.

Out of the four figures that follow,you are to indicate which figure will best represent the relationship amongst the three classes: Tea,Coffee,Beverages.