No it wasen't
Paint and ink have very different properties. Basically, the printing process uses the principle that oil and water do not mix, ink is an oil base, and dries much quicker than oil paint. There is also a color matching standard, Pantone, that has been developed for the printing industry, any color possible can be found in their system of ink colors. Many paint colors are achieved by the artist mixing them.
Ink mixed with ashes and oil. Charcoal was also used.
The mediums used in creating textures are typically acrylic paint, oil paint, pastels, ink, or watercolor. Brayers are rolled over these mediums to distribute paint evenly and create different textures on surfaces like paper or canvas.
He used oil.
Whitewash was frequently used. Additionally, linseed oil based paints were common.
Oil paint
Linseed oil does not damage paint. Linseed oil is used along with turpentine in oil paints as a type of paint thinner. Linseed oil extends the life of oil paint, makes it easier to thin out, control the paint and paint layers.
No, paint is made to an entirely different recipe: basically a liquid binder (possibly acrylic, linseed oil, etc.) and coloured powders, and other ingredients. Ink is much finer so as not to block a dip, or fountain pen's nib or a printer's ink cartridge. Thicker inks are used in the printing industry, notably in printing newspapers and magazines, etc.
It might not work if you try.
Oil on canvas
The Starry Night is an oil-on-canvas painting by Vincent van Gogh.
Mineral oil is not used to remove paint. Mineral spirits is used to thin and cleanup oil based paints, however it will not affect the paint once it has dried. Remove dried oil based paint by scraping or use lacquer thinner to soften the paint so that it can be removed.