Statements: Should octroi be abolished?

Arguments: I. Yes. It will eliminate an important source of corruption.

II. No. It will adversely affect government revenues.

(A) A substantial increase in the unhealthy competition has been observed among the students.

(B) A rise of 23% is reported every year in the cases of suicides after declaration of grade 10thand 12^th examination results.

Statement: Many political activists have decided to stage demonstrations and block traffic movement in the city during peak hours to protest against the steep rise in prices of essential commodities.

Courses of action:

I. The Govt should immediately ban all forms 9f agitations in the country.

II. The police authority of the city should deploy additional forces all over the city to help traffic movement in the city.

III. The state administration should carry out  preventive arrests of the known criminals staying in the city.

Statements: Some grapes are apples. Some apples are papayas. All papayas are mangoes. Noman go is banana.

Conclusions: I. No banana is papaya. II. Some apples are mangoes.III. Some bananas are grapes. IV. No banana is grape.

Statements: All flowers are trees. Some trees are stars. Some stars are clouds. No cloud is rock.

Conclusions: I. No rock is star. II. Some stars are flowers.III. Some rocks are flowers. IV. Some rocks are stars.

Statements: Some pens are stands. Some stands are containers. All containers are boxes. All boxes are drawers.

Conclusions:

 I. Some boxes are stands.

 II. Some drawers are stands.

III. Some drawers are containers.

IV. Some boxes are pens.

Statements: All paints are colours. Some colours are brands. Some brands are certificates. All certificates are degrees.

Conclusions: I. Some brands are degrees.

II. Some certificates are colours.

III. Some colours are paints.

IV. No paint is degree.

Statements: Some files are covers. All covers are keys. All keys are locks. Some locks are doors.

Conclusions: I. Some doors are keys. II. Some doors are covers.III. All keys are covers. IV. Some doors are files.

Statements: Some desks are chairs. All chairs are tables. All tables are computers. All computers are phones.

Conclusions: I. Some phones are desks II. Some computers are chairs. III. All tables are phones. IV. Some desks are tables.

Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group