M, N, O, P, Y and Z live on six different floors of the same building, numbered 1 (lowermost) to 6 (topmost). Only two people live between N and P. Only two people live between Z and O. No one lives above Z. P lives below O but above Y. How many people live below M?

Each of E, F, G, H, K, L and M has an exam on a different day of the week, starting from Monday and ending on Sunday. Only two people have exams before E. Only one person has an exam after L. Only three people have exams between E and K. Only one person has an exam between M and F. H has an exam just before M. How many people have exams between G and M?

Each of P, Q, R, S, T, U, and V has an exam on a different day of the same week, starting on Monday and ending on Sunday. Q's exam is on Thursday. Only 4 people have exams between T and P, none of whom have an exam on Sunday. R's exam is immediately before S. U's exam is not on Friday. T's exam is not after S. Who has the exam on Tuesday?