Give an example of a body which covers a certain distance,but its displacement is zero.

(N/A) An object moving in a circular path and returning to its starting point covers a distance equal to the circumference of the circle $(2 \pi r)$,but its displacement is zero because the initial and final positions are the same.
Another example is the Earth,which covers a very large distance in its rotation about its own axis in $24$ hours,but its displacement is zero because it returns to its original position.