Seven boxes, F, G, H, I, L, M and N, are kept one over the other but not necessarily in the same order. Only three boxes are kept below I. Only two boxes are kept between I and F. Only H is kept above L. M is kept at some place below G and at some place above N. Which box is kept at the second position from the bottom?

Six boxes, A, B, C, D, E and F, are kept one over the other but not necessarily in the same order. B is kept third from the top. Only one box is kept between C and D. B is kept immediately above C. Only three boxes are kept between F and E. D is kept immediately below F. F is not kept at the topmost position. A is kept immediately below E. How many boxes are kept between A and F?

Seven boxes A, B, C, D, I, J and K are kept one over the other but not necessarily in the same order. Only A is kept above I. Only two boxes are kept between I and C. Only K is kept below J. D is not kept immediately above C. How many boxes are kept between B and K?