Question

is it possible for a body to be at rest and motion at same time? explain by example

Answer 1

Yes,

Imagine if u are in a train, the objects outside ( like trees )  are in motion but the train itself or the seat on which u r sitting are in a state of rest with respect to you.

Answer 2

Yes. This is possible when the frame of viewing is changed. A person sitting in a train is at rest for another person sitting in the same train but is in motion to a person standing outside.