There is no country with no ruler. Every country has a form of government that includes a leader or a ruling body to govern the nation.
I have never heard "a pair of ruler" but I wouldn't be surprised if someone on this planet said it that way.SingularI have a ruler.Here, borrow my ruler.Thank-you for lending me your ruler.PluralTeacher, I can lend John one of my three rulers.John now has one ruler and I still have two rulers.When John returns the ruler he borrowed from me, I will again have three rulers.Others thought it was odd that I kept three rulers in my desk when most students only have one ruler.Ruler as a personA ruler is the head of a country. 9singular)Historians have identified the early rulers of most nations. (plural)While some people may say "pair of rulers" when they mean "two rulers of two different countries", it is better to use a number, such as "Countries could experience conflict if they had two rulers at the same time."
The ruler of the Roman Gods is Jupiter
To find the precision on a ruler, look at the smallest division or marking on the ruler, as this indicates the precision of measurements that can be made using the ruler. For example, if the ruler is marked in millimeters and the smallest division is a millimeter, the precision is 1 millimeter.
To record measurements using a ruler, place the ruler next to the object to be measured. Ensure that the zero mark on the ruler aligns with one end of the object. Read the measurement where the other end of the object falls on the ruler and record it in the appropriate units.
A ruler is called 'une règle' (fem.) in French.
An absolute ruler is a ruler that has unlimited power over their country.
The ruler of a country is typically referred to as the head of state or the monarch in a monarchy.
Catherine the Great was the ruler of Russia.
Autocracy
A country whose ruler has unlimited power is called an autocracy.
A czar (tsar or tzar) was the ruler of old Russia.
EGYPT!
france
ruler (for measuring) is feminine ruler (of country) is masculine
Mongolia
tetrarch
Russia