Question

find odd man out ,,, tractor,, motor,, mixer,, grindingstone​

Answer 1

▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬

$\mathfrak{The\:Answer\:is}$

Grindingstone

Runs on man-power

$\boxed{Hope\:This\:Helps}$

▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬

Answer 2

Grinding Stone because all other run on mechanical process means mechanical force and grinding Stone runs by man means muscular force