Question 1
Five friends A, B, C, D, and E are standing in a single row facing North. i) D is exactly in the middle of the row. ii) C is not at any end. iii) B is to the immediate left of E. iv) A is at one of the ends. v) C is to the immediate right of D. Who is standing at the left end?
From (i), D is at position 3. From (v), C must be at position 4. (iii) places B and E as consecutive with B left of E at positions 1 and 2. (iv) puts A at the remaining end, position 5. Final order: B E D C A. Left end is B.