The toilets refill because water is leaking past the flapper. In your case, you are running some water or turning water off right when the toilets are ready to refill and your action "jiggles" the ballcock to start. The toilets are also refilling at other times but you have not noticed yet. Get them repaired.
They unclog Toilets and other plumbing in the house
No, Romans generally had to use public toilets: insulae (apartments) and other typical Roman dwellings did not have their own toilets. They probably had chamber pots for use during the night which they could empty in the morning. Indeed, running water did not go to each house but only to public fountains where it could be collected and taken to the house in a jar.
both the refills attract each other
There are 14 female toilets, 13 male toilets and 13 disabled toilets. See the related link for a map of the Science Museum that shows the location of each toilet and other amenities.
it helped the invention of toilets
If it has threads on the top, you refill it like any other tank by taking it to a sporting goods store or paintball field. If it does not, then it is a disposable, and you cannot refill it.
There are no toilets made out of vermin's or any other type of animal or insect. You can get vermin's in your toilet though like rats and snakes.
Vintage Press in 1991 http://en.wikipedia.org/wiki/Sandra_Cisneros And many other sources. Google it.
2618 that is about 35 people per toilet as the capacity is 90000
Nothing right away. Recover the other 3 "treasures" (ice, draught, and lantern) and refill the lantern with kerosene in the basement. Then the ghost cat will direct you to the cemetery statue.
use other chemicas to neutralaze wasted chemicals.
There is actually a list online of the top ten top rated toilets available. The number one spot goes to the TOTO USA. To see the other toilets that fall in the top ten go to http://www.cozycozycozy.com/thebesttoilet/?p=4