Reasoning

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Next: 7, 14, 28, 56, ?

Next: 15, 30, 60, 120, ?

Next: 9, 18, 36, 72, ?

Next: 4, 8, 16, 32, ?

Next: 11, 22, 44, 88, ?

Next: 28, 39, 50, 61, ?

Next: 4, 9, 14, 19, ?

Next: 6, 12, 24, 48, ?