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  2. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    One of the greatest unsolved mysteries in math is also very easy to write. Goldbach’s Conjecture is, “Every even number (greater than two) is the sum of two primes.”. You check this in your ...

  3. Terence Tao - Wikipedia

    en.wikipedia.org/wiki/Terence_Tao

    Tao was the youngest participant to date in the International Mathematical Olympiad, first competing at the age of ten; in 1986, 1987, and 1988, he won a bronze, silver, and gold medal, respectively. Tao remains the youngest winner of each of the three medals in the Olympiad's history, having won the gold medal at the age of 13 in 1988.

  4. Good Country Index - Wikipedia

    en.wikipedia.org/wiki/Good_Country_Index

    The Good Country Index is a composite statistic of 35 data points mostly generated by the United Nations. These data points are combined into a common measure which gives an overall ranking, and a ranking in seven categories: The concept, and the index itself, were developed by Simon Anholt.

  5. List of sovereign states - Wikipedia

    en.wikipedia.org/wiki/List_of_sovereign_states

    List of sovereign states. The following is a list providing an overview of sovereign states around the world with information on their status and recognition of their sovereignty . The 205 listed states can be divided into three categories based on membership within the United Nations System: 193 UN member states, [1] 2 UN General Assembly non ...

  6. List of countries by population (United Nations) - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    List of countries by population (United Nations) This is a list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2022 revision of World Population Prospects. It presents population estimates from 1950 to the present. [2]

  7. List of countries by English-speaking population - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    English is the most widespread language in the country due to the many different languages spoken, with 60 million speakers. This includes speakers of an English creole, accounting for 51% to 57% of the total population. It is estimated 10% of Nigerians speak English as a first language. United Kingdom: 64,000,000: 62,912,000: 98.30

  8. Democracy Ranking - Wikipedia

    en.wikipedia.org/wiki/Democracy_Ranking

    Democracy. The Democracy Ranking is an index compiled by the Association for Development and Advancement of the Democracy Award, an Austria -based non-partisan organization. [1] [2] Democracy Ranking produces an annual global ranking of liberal democracies. The applied conceptual formula, which measures the quality of democracy, integrates ...

  9. Global Liveability Ranking - Wikipedia

    en.wikipedia.org/wiki/Global_Liveability_Ranking

    The Global Liveability rank Ranking is a yearly assessment published by the Economist Intelligence Unit (EIU), ranking 172 global cities (previously 140) for their urban quality of life based on assessments of stability, healthcare, culture and environment, education and infrastructure. Austria's capital, Vienna, was ranked the most liveable ...