Each of A, B, C, D, E and F has a badminton match on a different day of a week starting from Monday and ending on Saturday of the same week. C has a match on Friday. Only three people have matches between C and F. D has a match immediately after E but immediately before B. On which day of the week does E have the match?

Each of seven people - H, U, S, B, A, N, and D - has an exam on a different day of the week starting from Monday and ending on Sunday. No one has an exam after D. Only two people have exams between D and A. Only two people have exams between S and A. Only two people have exams between B and N. H has an exam on one of the days before U. N has an exam immediately after U. Who has an exam on Wednesday?

Sachin sells mobiles of seven different companies: Samsung, HTC, Lenovo, Intex, Micromax, Nokia, and Oppo, one each day starting from Monday and ending on Sunday, but not necessarily in the same order. Sachin sold HTC on Monday. He sold only three mobiles between HTC and Samsung. He does not sell any other mobile between the days he sold Samsung and Lenovo. He sold only two mobiles between Lenovo and Oppo. He sold Micromax mobiles the day immediately before the day he sold Oppo mobiles. He sold Intex after Oppo, but not on Sunday. On which day did Sachin sell Micromax mobile?