Question

A body weighs more at the poles than at the equator of the earth. Explain why?

Answer 1

A body weighs more at the poles than at the equator, because
the earth is not a perfect square, but it is flattened at
the poles. The distance between the equator and the center
of the earth and the poles; therefore the force of
gravitation is more at the poles than at the equator; and so
it weighs more at the poles than equator.

Answer 2

Gravity will pull down at the poles, so its maximum at the poles and minimum at the equator.

So, usually, a mass of the body will be heavier at the maximum gravity point, which is at the poles.