Reasoning & Mental Ability

Riya is 22th from top in a class of 23. Rank from bottom?

Riya is 11th from top in a class of 31. Rank from bottom?

Riya is 16th from top in a class of 28. Rank from bottom?

Riya is 4th from top in a class of 17. Rank from bottom?

Riya is 16th from top in a class of 18. Rank from bottom?

Riya is 22th from top in a class of 24. Rank from bottom?

Riya is 23th from top in a class of 33. Rank from bottom?

Riya is 16th from top in a class of 33. Rank from bottom?

Riya is 20th from top in a class of 24. Rank from bottom?

Riya is 14th from top in a class of 18. Rank from bottom?

Riya is 20th from top in a class of 22. Rank from bottom?

Riya is 6th from top in a class of 18. Rank from bottom?

Riya is 16th from top in a class of 20. Rank from bottom?

Riya is 33th from top in a class of 34. Rank from bottom?

Riya is 3th from top in a class of 12. Rank from bottom?

Riya is 2th from top in a class of 33. Rank from bottom?

Riya is 17th from top in a class of 27. Rank from bottom?

Riya is 10th from top in a class of 20. Rank from bottom?

B,C,D,E,F,G,H,A sit in a row. Who is immediately right of C?

C,D,E,F,G,H,A,B sit in a row. Who is at the left end?

D,E,F,A,B,C sit in a row. Who is immediately right of E?

G,H,A,B,C,D,E,F sit in a row. Who is at the left end?

G,A,B,C,D,E,F sit in a row. Who is immediately right of A?

A,B,C,D,E,F,G sit in a row. Who is immediately right of B?

E,F,G,H,A,B,C,D sit in a row. Who is at the left end?