Question

Safety pin, empty polythene bag, metal key, matal lock, stone odd one?

Answer 1

Two cases are possible in this question:-

1- The stone can be the odd one as it has no utility in our lives but the other things have .

2- The polythene bags can be odd one out as it is not a hard substance whereas the others are .

Answer 2

Explanation:

Stone

they are different because they have different property