Millimetres are used on many measuring devices for greater accuracy.
Paper
Nothing because a millimeter is a unit of length not weight.
A speck of dust is about as long as 1 millimeter; a speck of dust can be found in all houses.
Millimeter is a measurement.I have a ruler measured in milometers.
I can think of no household item that is 1mm long. It would be very difficult to pick up and manipulate.
A micrometer caliper is a measuring device for finding very exact measurements of an item. The least count of a micrometer caliper in millimeter is 0.02.
no, for liquid, one uses "millilitre" as in ml
pencil lead is of 1 mm. thickness. 1mm is very small in length.
plants
it is the most important item in mathematics
In order to find information about uses, one would need to narrow down ones search a little, perhaps by specifying the item which one wishes to find out the uses of. Then one can search for information about this item, perhaps by looking at the relevant Wikipedia article if it is available, which will list the common uses of the item about which one is inquiring.
Answer:None. The Mental Herb is a Battle Hold Item, not an Evolution Inducing Item.