सात डिब्बे B, D, E, P, S, T और W एक के ऊपर एक रखे गए हैं, लेकिन जरूरी नहीं कि इसी क्रम में हों। D के ऊपर केवल E रखा गया है। D और B के बीच केवल P रखा गया है। T के नीचे केवल W रखा गया है। S और W के बीच कितने डिब्बे रखे गए हैं?

Seven people B, C, D, I, J, K, and L are sitting in a straight line facing north. No one sits to the right of L. Only three people sit between B and L. Only one person sits between L and I. K sits to the immediate left of C. J is not an immediate neighbour of L. How many people sit to the right of D?

Seven boxes, A, B, C, D, E, F, and G, are kept one over the other, but not necessarily in the same order. A is kept second from the bottom. Only three boxes are kept between A and D. B is kept at one of the positions below A. Only E is kept between D and G. F is kept at one of the positions above D. How many boxes are kept below C?