On a staircase 'A' is further up than 'B' but is lower than 'C'. 'D' is in the middle. 'E' is between 'A' and 'D'. 'F' is between 'B' and 'G'. There is no one below 'G'. Who is at the 5th position from downside?

Six persons A, B, C, D, E and F are standing in a row. C and D are standing close to each other alongside E. B is standing beside A only. A is fourth from F. Who are standing on the extremes?

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?

Among five boys A is taller than B but not taller than C. D is taller than C but not taller than E. If these boys are standing in a row in increasing order of their heights, then who will be at first…

In a queue of boys, A is seventh from the left and B is fourth from the right. When A and B interchange their positions, A becomes fifteenth from the left. Find the position of B from the right.

Count the triangles in the following diagram and find the correct answer. (Figure: a triangle with three lines drawn inside — one from the top vertex straight down to the base, and one from each bott…