Persons: A, B, C, D, E, F, G and H

1. There are 2 persons sitting between A and D when counted from the right of A.

2. F is an immediate neighbour of D.

3. C sits exactly opposite to F.

(Hence, Case 2 gets eliminated)

4. B sits second to the right of G.

5. G is one of the immediate neighbors of E.

(This is not possible in Case 1.2 hence it gets eliminated.)

6. H will sit at the remaining position.

Persons: A, B, C, D, E, F, G and H

1. There are 2 persons sitting between A and D when counted from the right of A.

2. F is an immediate neighbour of D.

3. C sits exactly opposite to F.

(Hence, Case 2 gets eliminated)

4. B sits second to the right of G.

5. G is one of the immediate neighbors of E.

(This is not possible in Case 1.2 hence it gets eliminated.)

6. H will sit at the remaining position.

Hence, no one sits between D and F when counted from the right of F.

Persons: A, B, C, D, E, F, G and H

1. There are 2 persons sitting between A and D when counted from the right of A.

2. F is an immediate neighbour of D.

3. C sits exactly opposite to F.

(Hence, Case 2 gets eliminated)

4. B sits second to the right of G.

5. G is one of the immediate neighbors of E.

(This is not possible in Case 1.2 hence it gets eliminated.)

6. H will sit at the remaining position.

Hence, C sits exactly between G and D, is not a correct statement.

Given:

Eight friends: Rahi, Kirti, Prerana, Kanak, Palak, Pooja, Shail and Prajakta are sitting around a circular table.

Some are them are facing inside the center while some are facing outside the center.

Not more than two persons sitting together are facing the same direction.

1) Pooja sits second to the left of Kanak, who is facing towards the center.

2) Rahi sits third to the right of Pooja.

3) Prerana sits second to the right of Rahi but she is not an immediate neighbor of Pooja.

4) Palak sits to the immediate left of Prerana, who is facing the same direction as Pooja.

5) Shail sits second to the left of Kirti, who faces outside the center.

6) Not more than two persons sitting together are facing the same direction.

7) Immediate neighbors of Prerana are facing the opposite direction. (This eliminates case 2)

Final arrangement

Kirti is sitting fourth to the left of Rahi or Fourth to the right of Rahi.

Given:

Eight friends: Rahi, Kirti, Prerana, Kanak, Palak, Pooja, Shail and Prajakta are sitting around a circular table.

Some are them are facing inside the center while some are facing outside the center.

Not more than two persons sitting together are facing the same direction.

1) Pooja sits second to the left of Kanak, who is facing towards the center.

2) Rahi sits third to the right of Pooja.

3) Prerana sits second to the right of Rahi but she is not an immediate neighbor of Pooja.

4) Palak sits to the immediate left of Prerana, who is facing the same direction as Pooja.

5) Shail sits second to the left of Kirti, who faces outside the center.

6) Not more than two persons sitting together are facing the same direction.

7) Immediate neighbors of Prerana are facing the opposite direction. (This eliminates case 2)

Final arrangement

Hence, Kanak is sitting exactly between Shail and Rahi.

Given:

Eight friends: Rahi, Kirti, Prerana, Kanak, Palak, Pooja, Shail and Prajakta are sitting around a circular table.

Some are them are facing inside the center while some are facing outside the center.

Not more than two persons sitting together are facing the same direction.

1) Pooja sits second to the left of Kanak, who is facing towards the center.

2) Rahi sits third to the right of Pooja.

3) Prerana sits second to the right of Rahi but she is not an immediate neighbor of Pooja.

4) Palak sits to the immediate left of Prerana, who is facing the same direction as Pooja.

5) Shail sits second to the left of Kirti, who faces outside the center.

6) Not more than two persons sitting together are facing the same direction.

7) Immediate neighbors of Prerana are facing the opposite direction. (This eliminates case 2)

Final arrangement

Hence, five friends are facing towards the center.

Seven persons: Zora, Zoya, Zoha, Zova, Zofa, Zola and Zoma

Arrangement: Unidirectional (facing away from the centre)

1) Zova sits to the immediate right of Zora.

2) As many people sit between Zofa and Zova when counted anticlockwise from Zofa, as between Zora and Zofa when counted clockwise from Zofa.

3) Neither Zoma nor Zola is an immediate neighbour of Zofa. 

4) Zora sits second to the right of Zoha.

This indicates that Zoya sits to the immediate left of Zofa.

As the definite position of Zola is not known, the position of Zoya with respect to Zola cannot be determined.

Seven persons: Zora, Zoya, Zoha, Zova, Zofa, Zola and Zoma

Arrangement: Unidirectional (facing away from the centre)

1) Zova sits to the immediate right of Zora.

2) As many people sit between Zofa and Zova when counted anticlockwise from Zofa, as between Zora and Zofa when counted clockwise from Zofa.

3) Neither Zoma nor Zola is an immediate neighbour of Zofa. 

4) Zora sits second to the right of Zoha.

This indicates that Zoya sits to the immediate left of Zofa.

Hence, if Zoma is an immediate neighbour of Zora then Zola sits to the immediate right of Zova.

Seven persons: Zora, Zoya, Zoha, Zova, Zofa, Zola and Zoma

Arrangement: Unidirectional (facing away from the centre)

1) Zova sits to the immediate right of Zora.

2) As many people sit between Zofa and Zova when counted anticlockwise from Zofa, as between Zora and Zofa when counted clockwise from Zofa.

3) Neither Zoma nor Zola is an immediate neighbour of Zofa. 

4) Zora sits second to the right of Zoha.

This indicates that Zoya sits to the immediate left of Zofa.

Hence, two persons sit between Zova and Zofa when counted from the right of Zova.

1)The one who like Pizza sits second to the right of A.

2) C likes Dosa and sits third to the left of E, who does not like Pizza.

3) B and D are immediate neighbors of each other.

4) F likes Vadapav sits second to the right of B, who does not like Idli.

5) The one who likes Idli sits immediately to the left of the one who likes Noodles.

Note: B does not like Idli so this condition eliminates case 2.

Final arrangement: 

Hence, A likes Idli.

1)The one who like Pizza sits second to the right of A.

2) C likes Dosa and sits third to the left of E, who does not like Pizza.

3) B and D are immediate neighbors of each other.

4) F likes Vadapav sits second to the right of B, who does not like Idli.

5) The one who likes Idli sits immediately to the left of the one who likes Noodles.

Note: B does not like Idli so this condition eliminates case 2.

Final arrangement: 

Hence, only one person sits between B and E.

1)The one who like Pizza sits second to the right of A.

2) C likes Dosa and sits third to the left of E, who does not like Pizza.

3) B and D are immediate neighbors of each other.

4) F likes Vadapav sits second to the right of B, who does not like Idli.

5) The one who likes Idli sits immediately to the left of the one who likes Noodles.

Note: B does not like Idli so this condition eliminates case 2.

Final arrangement: 

Hence, F sits immediately to the right of C.

1) A is to the immediate left of D, both A and D are facing the same direction (Either both are facing towards the center or both are facing outside).

2) C is sitting fourth to the right of A.

3) Only one person sits in between E and C and adjacent to them.

4) E and G are immediate neighbors of each other. Neither G nor E is an immediate neighbor of C.

5) G is facing the opposite direction to A.

6) E and G faces opposite direction to each other(one faces inside and other faces outside or vice versa).

7) F is sitting second to the right of G and second to the left of H

8) Immediate neighbors of H faces the opposite direction to each other.

9) C faces the same direction as G.

10) Not more than three persons face outside. (This eliminate case 1)

Final arrangement:

1) A is to the immediate left of D, both A and D are facing the same direction (Either both are facing towards the center or both are facing outside).

2) C is sitting fourth to the right of A.

3) Only one person sits in between E and C and adjacent to them.

4) E and G are immediate neighbors of each other. Neither G nor E is an immediate neighbor of C.

5) G is facing the opposite direction to A.

6) E and G faces opposite direction to each other(one faces inside and other faces outside or vice versa).

7) F is sitting second to the right of G and second to the left of H

8) Immediate neighbors of H faces the opposite direction to each other.

9) C faces the same direction as G.

10) Not more than three persons face outside. (This eliminate case 1)

Final arrangement:

If B is one of the persons then, the arrangement is:

1) A is to the immediate left of D, both A and D are facing the same direction (Either both are facing towards the center or both are facing outside).

2) C is sitting fourth to the right of A.

3) Only one person sits in between E and C and adjacent to them.

4) E and G are immediate neighbors of each other. Neither G nor E is an immediate neighbor of C.

5) G is facing the opposite direction to A.

6) E and G faces opposite direction to each other(one faces inside and other faces outside or vice versa).

7) F is sitting second to the right of G and second to the left of H

8) Immediate neighbors of H faces the opposite direction to each other.

9) C faces the same direction as G.

10) Not more than three persons face outside. (This eliminate case 1)

Final arrangement:

All faces towards the center except ‘C’.