Some nouns look plural, but are actually singular. For example,
A game of billiards.
Mathematics is one of the subjects you need to take in high school
Politics is the art of governance.
Economics is the social science that studies the processes that govern the production, distribution and consumption of goods and services in an exchange economy.
Economics appears to be a difficult subject, but it in reality, is very easy.
Statistics forms the basis of actuarial science.
Statistics needs to be taught in a manner that is interesting.
Statistics is both an art and a science.
Measles spreads rapidly during the rainy season.
Economics and Linguistics are great subjects.