Does gravity have any effect on inertial mass?

Why is the weight of an object on the moon $\frac{1}{6}^{th}$ its weight on the Earth?

If your weight on the Earth is $450 N$,calculate your weight on planet Mars. (Radius of Mars $= 4.3 \times 10^{6} m$,mass of Mars $= 6 \times 10^{23} kg$ and gravitational constant $G = 6.67 \times 10^{-11} Nm^{2} kg^{-2}$). Take acceleration due to gravity on Earth as $10 m s^{-2}$.

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

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

It is found that the weight of an object is more at the poles than at the equator. So it is beneficial to purchase goods at the equator and sell them at the poles,provided: