Pravin walked $30 \, m$ towards East,took a right turn and walked $20 \, m$,again took a right turn and walked $30 \, m$. How far was he 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 anti-clockwise and cross over the corner diagonally opposite. The original configuration $ADBC$ has now changed to

$I$ start from my home and go $2 \, km$ straight. Then,$I$ turn towards my right and go $1 \, km$. $I$ turn again towards my right and go $1 \, km$ again. If $I$ am north-west from my house,then in which direction did $I$ go in the beginning?

Anil's house faces east. From the back-side of the 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 Anil is in which direction from the starting point?

On a playing ground,Dinesh,Kunal,Nitin,Atul and Prashant are standing as described below facing the North.
$(i)$ Kunal is $40 \, m$ to the right of Atul.
$(ii)$ Dinesh is $60 \, m$ to the south of Kunal.
$(iii)$ Nitin is $25 \, m$ to the west of Atul.
$(iv)$ Prashant is $90 \, m$ to the north of Dinesh.
If a boy walks from Nitin,meets Atul followed by Kunal,Dinesh and then Prashant,how many metres has he walked if he has travelled the straight distance all through (in $, m$)?

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?