If cushion is called pillow,pillow is called mat,mat is called bedsheet,and bedsheet is called cover,which will be spread on the floor?

In a certain code,'good and bad' is written as '$725$'; 'one and all' is written as '$932$'; and 'this is good' is written as '$154$'. How is 'one' written in that code?

In a certain code,$REFRIGERATOR$ is coded as $ROTAREGIRFER$. Which word would be coded as $NOITINUMMA$?

If lead is called stick,stick is called nib,nib is called needle,needle is called rope and rope is called thread,what will be fitted in a pen to write with it?

In a certain code,$3456$ is coded as $ROPE$ and $15526$ is coded as $APPLE$. How is $54613$ coded?

If in a certain language $MISTAKE$ is coded as $9765412$ and $NAKED$ is coded as $84123$,then state which is the correct code for $STAIN$.