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