पांच मित्र A, B, C, D और E उत्तर की ओर मुख करके एक पंक्ति में बैठे हैं। A, E के ठीक बाईं ओर बैठा है। D, B के ठीक दाईं ओर बैठा है। E, A और D के बीच बैठा है। C और E के बीच कितने लोग बैठे हैं?

Six persons - P through U are sitting around a circular table facing the center. R and T are not adjacent to each other. Q and S are opposite each other. P is sitting to the immediate left of S. Which of the following additional statements is required to get a single definite final arrangement of all persons?

A, B, C, and D are sitting around a circular table facing the center. 1) A is sitting opposite the cook. 2) B is sitting to the immediate right of the barber. 3) The washerman is sitting to the immediate left of the tailor. 4) D is sitting opposite C. What are the professions of A and B respectively?