It is always good to water grass, as long as you do not over water
watering
no
loss of money
yes because your water that you put on your grass will freeze
It depends on the weather, the type of grass, and most importantly, how much grass.
yes
U fertilize it
Watering at night means less water will be lost to evaporation. However, it also means that your grass will be wet for hours which is not good for the lawn. The best is to water it very early in the morning (4-5) where there will be less evaporation and the grass doesn't stay wet too long
Why on earth would anyone want to water grass with milk?
It depends. Normally its green, but you never know if an animal decided to drop a load and turned it brown. and most people think grass dies from under watering it. Overwatering grass gives the same effect as under watering it.
Watering at night means less water will be lost to evaporation. However, it also means that your grass will be wet for hours which is not good for the lawn. The best is to water it very early in the morning (4-5) where there will be less evaporation and the grass doesn't stay wet too long
By not smoking around grasslands. Also by watering the grass.