One day,Ravi left home and cycled $10 \,km$ southwards,turned right and cycled $5 \,km$,turned right and cycled $10 \,km$,and finally turned left and cycled $10 \,km$. How many kilometres will he have to cycle to reach his home straight? (in $km$)

$X$ and $Y$ start moving towards each other from two places $200 \, m$ apart. After walking $60 \, m$,$Y$ turns left and walks $20 \, m$,then turns right and walks $40 \, m$. He then turns right again and comes back to the road on which he had started walking. If $X$ and $Y$ walk with the same speed,what is the distance between them now? (in $m$)

Kashish goes $30 \, m$ North,then turns right and walks $40 \, m$,then again turns right and walks $20 \, m$,then again turns right and walks $40 \, m$. How many metres is he from his original position?

Sudheesh walked $10 \, m$ towards south. He turned left and walked $20 \, m$ and then moved to his right. Then he turned right and walked $20 \, m$. Finally he turned right and moved a distance of $10 \, m$. How far and in which direction is he from the starting point?

If the above clock is turned through an angle of $135^{\circ}$ in an anticlockwise direction,in which direction will its minute hand point at $8.45 \, p.m.$?

$A$ square field $ABCD$ of side $90 \,m$ is so located that its diagonal $AC$ is from north to south and the corner $B$ is to the west of $D$. Rohan and Rahul start walking along the sides from $B$ and $C$ respectively in the clockwise and anticlockwise directions with speeds of $8 \,km/hr$ and $10 \,km/hr$. Where shall they cross each other the second time?