11.
Statements : All fish are tortoise. No tortoise is a crocodile.

Conclusions :
I. No crocodile is a fish.
II. No fish is a crocodile.

12.
Statements : Some dedicated souls are angels. All social workers are angels.

Conclusions :
I. Some dedicated souls are social workers.
II. Some social workers are dedicated souls.

13.
Statements : No gentleman is poor. All gentlemen are rich.

Conclusions :
I. No poor man is rich.
II. No rich man is poor.

14.
Statements : Some swords are sharp. All swords are rusty.

Conclusions :
I. Some rusty things are sharp.
II. Some rusty things are not sharp.

15.
Statements : All fishes are grey in colour. Some fishes are heavy.

Conclusions :
I. All heavy fishes are grey in colour.
II. All light fishes are not grey in colour.

16.
Statements : All good athletes win. All good athletes eat well.

Conclusions :
I. All those who eat well are good athletes.
II. All those who win eat well.

17.
Statements : All film stars are playback singers. All film directors are film stars.

Conclusions :
I. All film directors are playback singers.
II. Some film stars are film directors.

18.
Statements : All hill stations have a sun-set point. X is a hill station.

Conclusions :
I. X has a sun-set point.
II. Places other than hill stations do not have sun-set points.

19.
Statements : Some dreams are nights. Some nights are days.

Conclusions :
I. All days are either nights or dreams.
II. Some days are nights.

20.
Statements :All jungles are tigers. Some tigers are horses.

Conclusions :
I. Some horses are jungles.
II. No horse is jungle.

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