yes
These things could be referred to as illusions or apparitions. They may appear solid and tangible but are not physically real or have material substance.
Wood. A lot of things can be a solid. Think of solid not as much as an object but a state. For example water can be either gaseous (vapour), liquid (condensation) or solid (ice).
when something is solid it means it is hard and you can easily touch feel see and describe it.Like bricks,stones,pencils ,plates etc. are solid
glass
You have dissolved the solid completely.
chemical Jews it hard but squishy and see through
all solid things could be measured
Three things that will remain equal, regardless of where the solid matter goes are temperature, mass and pressure.
It's when the anwser varies from things to things
yes
glass.
You can't see it.