You should not eat any mushroom that you can not identify or have not had identified by an expert.
However, a large white ball shaped solid mushroom is probably a 'puff ball' (see related link) and IF IT IS A PUFF BALL, then it would be edible.
A cookie is solid and it its edible as food.
To accurately identify a puffball mushroom, look for a round or pear-shaped fruiting body with a smooth outer surface. Cut it open to check for a solid, white interior without gills or a cap. Make sure it does not have a stalk or spore-bearing structure. Additionally, consider the habitat and season in which you found the mushroom, as these can help confirm its identity.
solid figure that has the shape of a round ball
A sphere. In Geometry, it is a round solid figure. Every point on it's surface is an equal distant from it's center.
a cheeseball.
an orange or anything else that is round and is solid
A Sphere
round no facemasks, round facemask, round and solid with a hard facemask.
fiber
So we can eat solid jell-o!!! And so our food stays edible!
If you have trouble eating solid foods, popsicles may be edible.
It is a cylinder.