Where does a solid weigh more: in air or in a liquid?

Where does a body weigh more at the pole or at the equator?

Where does a body weigh more – at the surface of the earth or in a mine?

A solid weighs 1.5 kgf in air and 0.9 kgf in a liquid of density 1.2xx10^(3)kgm^(-3) . Calculate R.D. of solid.

What happens to the buyoant force as more and more volume of a solid object is immersed in a liquid ? When does the buoyant force becomes maximum ?

Weight of a solid is 250 g in air, 50 g in unknown liquid and 150 g in water. The relative density of solid and the unknown liquid are respectively

Weight of a solid is 250 g in air, 50 g in unknown liquid and 150 g in water. The relative density of solid and the unknown liquid are respectively

Where does a body weigh less? At the sea level or on the mountains?

Why the speed oof sound is more in solid and liquid as compared to gases ?