Among six friends $L, M, N, P, Q$ and $S,$ each having a different height,$N$ is taller than $Q$ and $P$ but shorter than $M.$ $P$ is taller than only $Q$ while $S$ is shorter only than $L.$ Which of the following pairs represents the tallest and the shortest among the six friends?

Radha moves towards South-East a distance of $7 \, km$,then she moves towards West and travels a distance of $14 \, km$. From here she moves towards North-West a distance of $7 \, km$ and finally she moves a distance of $4 \, km$ towards East. How far is she now from the starting point? (in $km$)

$A$ man leaves for his office from his house. He walks towards east. After moving a distance of $20 \, m$,he turns towards south and walks $10 \, m$. Then he walks $35 \, m$ towards west and further $5 \, m$ towards north. He then turns towards east and walks $15 \, m$. What is the straight distance in metres between his initial and final positions?

The door of Aditya's house faces the East. From the back side of his house,he walks straight $50 \, m$,then turns to the right and walks $50 \, m$ again. Finally,he turns towards left and stops after walking $25 \, m$. Now,Aditya is in which direction from the starting point?

$Q$ walked $20 \, m$ towards West,took a left turn and walked $20 \, m$. He then took a right turn and walked $20 \, m$ and again took a right turn and walked $20 \, m$. How far is $Q$ now from the starting point? (in $m$)

From the original position given in the above figure,$A$ and $B$ move one arm length clockwise and then cross over to the corner diagonally opposite. $C$ and $D$ move one arm length anticlockwise and cross over to the corner diagonally opposite. The original configuration $ADBC$ has now changed to: