it depends on how good the pluming is.
This type of toilet is more like a full stand alone unit. In closed coupled toilets the cistern itself is mounted directly on top of the toilet bowl. People use this option of toilet because there are no pipes visible around the unit and it has a seamless look.
If it is just the toilet that doesn't have water, then the pipes are probably not frozen. If it is the whole house than maybe yes. If you have water at other faucets, look at the toilet and see where the blockage is. Disconnect the supply line under the tank and see if water is coming through the shut off at the toilet if there is one.
replace the fill valve
to your toilet
2 inches
it may be the shutt off valve near the floor.try to turn it clockwise while the pipes are vibrating and toilet is filling.if the noise stops you may have to change valve,or leave it in its new position.it could also be the fill valve in the tank causing the noise.
yes they are
yes
You will probably clog your toilet or pipes if you flush anything but toilet paper. I would not recommend trying to flush underwear down the toilet.
If pipes are frozen no water can flow, so water meter shouldn't be registering anything. But if pipes are frozen it's a good idea to turn the water off at the inlet. That way you have a chance to discover and leaks and damages when the pipes thaw w/o getting the whole place flooded.
yes if you eat them
This is most likely to be water hammer. The most likely reason is because a pipe has not been held down properly with a pipe clamp. It normally happens when a toilet is filling up or when taps are switched off suddenly. Its due to the water pressure in the pipes that makes the water rebound in the pipes causing them to rattle and make a noise