What will be the mass of a body at the centre of the earth as compared to other places on the earth?

Why does a body weigh more at the poles than at the equator?

Distinguish between mass and weight of an object. How does the weight of an object change when moving from the equator to the poles? When can the weight of an object be zero?

Gravitational force on the surface of the moon is only $\frac{1}{6}$ as strong as the gravitational force on the earth. What is the weight in newtons of a $10\, kg$ object on the moon and on the earth?

What would be the effect on the weight of a body if the earth stopped rotating?

Does gravity have any effect on inertial mass?