Verbal Reasoning - Mental Ability Questions

In the following Venn diagram the total number of students who play all the three games is

A scenery always has ________

Select from four alternative diagrams, the one that best illustrates the relationship among the three classes  :  Pigeons, Birds, Dogs

Identify the diagram that best represents the relationship among the given classes.

Science, Physics, Chemistry

Identify the diagram that best represents the relationship among the given classes.

Electrons, Nucleus, Neutrons

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

Assertion (A) : Appendix is a vestigial organ in human body. 

Reason (R)    : It does not participate in digestion. 

In a family, each daughter has the same number of brothers as she has sisters and each son has twice as many sisters as he has brothers. How many sons are there in the family ?

Rearrange the following sentences (A), (B), (C), (D), (E) and (F) in the proper sequence to form a meaningful paragraph.

(A) It causes a lot of physical problems especially for our eyes, body and mind.
(B) Such a lifestyle makes man lazy and excessively dependent on machines.
(C) Innovative products such as computers, laptops, mobile phones,
(D) Harmful radiation causes various terminal diseases.
(E) Technology has advanced rapidly and man cannot seem to live without it now.
(F) iPads have made things easier for us, but it also has its disadvantages.

Which of the following options is the correct arrangement ?