Directions: Study the following information carefully and answer the questions given below:

Eight scientists F, G, H, I, J, K, L and M are of different ages such as such that no two persons are of the same age. Each scientist has published the different number of the research papers. In a library, the research papers of these scientists are kept on eight shelves stacked one over another. The persons in the increasing order of their ages are as follows:

F (14) < J (17) < H (29) < M (36) < G (32) < L (25) < I (21) < K (28)

The numbers in the brackets are the number of research papers published by that scientist. The racks are numbered 1 to 8 from bottom to top. Only four scientists are older than the scientist whose research papers are placed on the lowermost rack of the stack. The number of research papers in rack no. 5 is 7 more than the research paper published by the youngest scientist. The research paper of the oldest scientist has placed three racks above the rack in which the 21 research papers are placed. The second-highest numbers of research papers are placed in the rack immediately above the rack in which research papers of I are placed. The difference between the research papers in rack 8 and rack 2 is 1. The research paper in rack 7 belongs to a scientist who is older than F and J. The number of research papers placed in rack 3 is an odd number.