There are five different houses, A to E, in a row. A is to the right of B and E is to the left of C and right of A. B is to the right of D. Which of the houses is in the middle ?
Answer: A
B is to the right of D. A is to the right of B. E is to the right of A and left of C. So, the order is : D, B, A, E, C. Clearly, A is in the middle.