1)  A is sitting opposite to the one who is second to the right of Q. 

2) Q is sitting at the end of the row (either left or right)

So, Q will sit at the right end of the row:

3) A and D are immediate neighbours of each other and D is second to the right of E:

So, D will sit to the immediate right of A.

4) S is third to the left of R and is not a neighbour of T.

5) R is opposite to B.

So, B will sit immediate left of E and C will sit to the immediate right of D:

Here, S is not the neighbour of T, so T will sit immediate left of R and P will sit immediate right of S.

So, the final figure according to the question is:

So,

(1) Opposite to D - True 

(2) Immediate neighbour of Q - True

(3) Second to the left of T - True

(4) Immediate left of the one who is opposite to A - True (Opposite to A is P, so S is the immediate neighbour of P)

Hence, All are correct.

Now, as per the given information in the question we get the following direction diagrams:

1. A person walks 5m north from point T and takes a left turn and walks for 8m and reaches point R. Combining these two statements we get-

2. From R, he takes a right turn and walks for 3m and again takes a right turn and walks 4m and reaches to point P. Combining these two statements we get-

3. From point P, he takes a right turn again and walks for 10m and reaches to point G. From point G, finally he takes a left turn and walks 4m and reaches point E. Combining these conditions, we get-

4. Point X is further located at 2m to the north of point G. From this condition, we get the final direction diagram as follows:

From the above direction diagram, we see that the point X is located in the North-western direction of point E.

Hence, the direction of point X with respect to point E is north-west.

Now, as per the given information in the question we get the following direction diagrams:

1. A person walks 5m north from point T and takes a left turn and walks for 8m and reaches point R. Combining these two statements we get-

2. From R, he takes a right turn and walks for 3m and again takes a right turn and walks 4m and reaches to point P. Combining these two statements we get-

3. From point P, he takes a right turn again and walks for 10m and reaches to point G. From point G, finally he takes a left turn and walks 4m and reaches point E. Combining these conditions, we get-

4. Point X is further located at 2m to the north of point G. From this condition, we get the final direction diagram as follows:

From the above direction diagram, we see that the points P, X and G are in a straight line.

Hence, the points P, X and G are collinear.

Now, as per the given information in the question we get the following direction diagrams:

1. A person walks 5m north from point T and takes a left turn and walks for 8m and reaches point R. Combining these two statements we get-

2. From R, he takes a right turn and walks for 3m and again takes a right turn and walks 4m and reaches to point P. Combining these two statements we get-

3. From point P, he takes a right turn again and walks for 10m and reaches to point G. From point G, finally he takes a left turn and walks 4m and reaches point E. Combining these conditions, we get-

4. Point X is further located at 2m to the north of point G. From this condition, we get the final direction diagram as follows:

From the above direction diagram, we see that-

The distance between points P and X is= 8 m

The distance between points E and G is= 4 m

Therefore, the average of the above two distances is = (8+4) ÷ 2 = 6 m.

Hence, the average of the two distances is 6 m.

Given:-

Eight residents - Robert, John, David, Thomas, Smith, George, Harry and William

Floors - Four, Ground floor is numbered 1 and the Topmost floor is numbered 4.

Two Flats - A and B, Flat B is in the east of flat A.

Now,

1) There are two floors between David and Thomas, who lives above David and both of them live in different flats. So, the possibilities are -

2) George lives in flat A and lives above Harry, who lives above William. We don't know the flats of Harry and William so the possibilities are -

Case I -

Case II -

3) Robert lives exactly in the west of John. It means Robert lives in flat A and John lives in flat Q and both lives on the same floor. This is not possible in any of the cases of Case I so Case I gets completely eliminated. In Case II, it is possible only in Case II (g), Case II (h), Case II (i), and Case II (j).

Case II -

4) Robert lives just above Smith and both of them live in the same flat. It means Smith also lives in flat A. Now, this is not possible in Cases (g), (i) and (j) of Case II so they get eliminated.

Thus, the final arrangement is -

Case II -

Among the given options, Smith lives on the second floor.

Hence, the correct answer is Smith.

Given:-

Eight residents - Robert, John, David, Thomas, Smith, George, Harry and William

Floors - Four, Ground floor is numbered 1 and the Topmost floor is numbered 4.

Two Flats - A and B, Flat B is in the east of flat A.

Now,

1) There are two floors between David and Thomas, who lives above David and both of them live in different flats. So, the possibilities are -

2) George lives in flat A and lives above Harry, who lives above William. We don't know the flats of Harry and William so the possibilities are -

Case I -

Case II -

3) Robert lives exactly in the west of John. It means Robert lives in flat A and John lives in flat Q and both lives on the same floor. This is not possible in any of the cases of Case I so Case I gets completely eliminated. In Case II, it is possible only in Case II (g), Case II (h), Case II (i), and Case II (j).

Case II -

4) Robert lives just above Smith and both of them live in the same flat. It means Smith also lives in flat A. Now, this is not possible in Cases (g), (i) and (j) of Case II so they get eliminated.

Thus, the final arrangement is -

Case II -

There are two floors between Thomas and William.

Hence, the correct answer is Smith.

Given:-

Eight residents - Robert, John, David, Thomas, Smith, George, Harry and William

Floors - Four, Ground floor is numbered 1 and the Topmost floor is numbered 4.

Two Flats - A and B, Flat B is in the east of flat A.

Now,

1) There are two floors between David and Thomas, who lives above David and both of them live in different flats. So, the possibilities are -

2) George lives in flat A and lives above Harry, who lives above William. We don't know the flats of Harry and William so the possibilities are -

Case I -

Case II -

3) Robert lives exactly in the west of John. It means Robert lives in flat A and John lives in flat Q and both lives on the same floor. This is not possible in any of the cases of Case I so Case I gets completely eliminated. In Case II, it is possible only in Case II (g), Case II (h), Case II (i), and Case II (j).

Case II -

4) Robert lives just above Smith and both of them live in the same flat. It means Smith also lives in flat A. Now, this is not possible in Cases (g), (i) and (j) of Case II so they get eliminated.

Thus, the final arrangement is -

Case II -

Among the given options, all except David live in flat B.

Hence, the correct answer is David.

Given:-

Eight residents - Robert, John, David, Thomas, Smith, George, Harry and William

Floors - Four, Ground floor is numbered 1 and the Topmost floor is numbered 4.

Two Flats - A and B, Flat B is in the east of flat A.

Now,

1) There are two floors between David and Thomas, who lives above David and both of them live in different flats. So, the possibilities are -

2) George lives in flat A and lives above Harry, who lives above William. We don't know the flats of Harry and William so the possibilities are -

Case I -

Case II -

3) Robert lives exactly in the west of John. It means Robert lives in flat A and John lives in flat Q and both lives on the same floor. This is not possible in any of the cases of Case I so Case I gets completely eliminated. In Case II, it is possible only in Case II (g), Case II (h), Case II (i), and Case II (j).

Case II -

4) Robert lives just above Smith and both of them live in the same flat. It means Smith also lives in flat A. Now, this is not possible in Cases (g), (i) and (j) of Case II so they get eliminated.

Thus, the final arrangement is -

Case II -

William stays in Flat B on floor 1.

Hence, the correct answer is Flat B, floor 1.

Given:-

Eight residents - Robert, John, David, Thomas, Smith, George, Harry and William

Floors - Four, Ground floor is numbered 1 and the Topmost floor is numbered 4.

Two Flats - A and B, Flat B is in the east of flat A.

Now,

1) There are two floors between David and Thomas, who lives above David and both of them live in different flats. So, the possibilities are -

2) George lives in flat A and lives above Harry, who lives above William. We don't know the flats of Harry and William so the possibilities are -

Case I -

Case II -

3) Robert lives exactly in the west of John. It means Robert lives in flat A and John lives in flat Q and both lives on the same floor. This is not possible in any of the cases of Case I so Case I gets completely eliminated. In Case II, it is possible only in Case II (g), Case II (h), Case II (i), and Case II (j).

Case II -

4) Robert lives just above Smith and both of them live in the same flat. It means Smith also lives in flat A. Now, this is not possible in Cases (g), (i) and (j) of Case II so they get eliminated.

Thus, the final arrangement is -

Case II -

The floor of John is two floors above with respect to David.

Hence, the correct answer is Two floors above.

The possible Venn Diagram is -

Additional Information

The two complementary pairs are:

1) All + Some not OR Some + All not

2) No + Some

Conclusions:

I. All Cravings is Music. → False (As there is no direct relation given between Cravings and Music, this conclusion doesn't follow.)

II. Some Cravings is not Music. → False (As there is no direct relation given between Cravings and Music, this conclusion doesn't follow.)

We can see that Conclusions I and II are individually wrong but form a complementary pair. Either of them can be possibly right.

Hence, the correct answer is Either conclusions I or II follow.