volume= mass\Density . so as if shape remain same then its mass and density remain fixed . so therefore no such object , but if we apply Einstein theory of relativity then as it says " after traveling some distance each object looses its mass which is very less i.e in fraction, which in negligible . Therefore each object is the answer.
The state of matter that has no definite shape but a definite volume is a liquid.Liquid has definite volume but no shape. It assumes the shape of the vessel in which it is kept.All liquids have a definite volume given a particular fixed temperature.for example, water. it has no definite shape but a definite volume under a given temperature.no matter that has no shape and a definite volume exists.as the temperature is decreased, the molecules in a substance lose energy and they come closer and thus the volume decreases. but when it is heated, the molecules gain energy and move around hitting each other and moving farther and farther still. thus the volume increases on heating.Added:Liquid has NO definite shape but certaily (YES) a definite volume.This volume is not depending on temperature in the sense of not being 'defined' (as erroneously stated above).Its (defined) volume is determined by the amount and kind of matter and depending on (not defined by) temperature.(This means that it has not a constant value for a certain amount of liquid, but it is still a definite volume, meaning that, at each temperature a certain volume is 'defined' for a certain amount of liquid (defined is a derived word from 'definite').
Gases
Element
Liquid.
A solid has a definite shape and volume that can be directly measured. A liquid does not have a definite shape, but it does have a measurable volume. A gas has neither a definite volume or shape and will completely fill the container it is in.
a gas
solid have definite shape , definite volume and close together particles
A liquid has an indefinite shape and a definite volume.
Liquid and gases
Matter in a liquid form.
The state of matter that has no definite shape but a definite volume is a liquid.Liquid has definite volume but no shape. It assumes the shape of the vessel in which it is kept.All liquids have a definite volume given a particular fixed temperature.for example, water. it has no definite shape but a definite volume under a given temperature.no matter that has no shape and a definite volume exists.as the temperature is decreased, the molecules in a substance lose energy and they come closer and thus the volume decreases. but when it is heated, the molecules gain energy and move around hitting each other and moving farther and farther still. thus the volume increases on heating.Added:Liquid has NO definite shape but certaily (YES) a definite volume.This volume is not depending on temperature in the sense of not being 'defined' (as erroneously stated above).Its (defined) volume is determined by the amount and kind of matter and depending on (not defined by) temperature.(This means that it has not a constant value for a certain amount of liquid, but it is still a definite volume, meaning that, at each temperature a certain volume is 'defined' for a certain amount of liquid (defined is a derived word from 'definite').
density
The volume of a figure depends on the kind of shape it has.
Gases
Elements.
Liquids have a variable shape take the shape of the container. Gases also have a variable shape and take the shape of the container.Liquids have a fixed volume. Gases have a variable volume and fill the container.
The forces of attraction between gas molecules is too weak for them to mantain any kind of definitive shape.( solids only have a shape because there are strong intermolecular forces between solid molecules). The reason for gas molecules not being able to mantain a fixed volume is also the same, the inter atomic forces are too weak to prevent spreading of gas molecules. Your looking for ( gas )