Each of G, H, I, J, K, L and M has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. L has an exam on Saturday. Only two persons have exam between G and L. Only one person has exam between G and I but I's exam is not on the first day. Only two persons have exams between J and I. K has exam immediately before J. H's exam is not on the last day. On which day does H have the exam?