World Facts and Geography

The United Nations Postal Administration is unique in that it's the only postal authority permitted to issue stamps even though it's neither a country nor a territory. UN stamps can only be used for mail sent from UN headquarters in New York, Geneva, and Vienna. These stamps are popular among collectors worldwide.

Costa Rica is known as the 'Switzerland of Central America' due to its stable democracy, lack of a standing army (abolished in 1948), high standard of living, and beautiful mountainous landscapes. This nickname highlights its peaceful nature and prosperity compared to some neighbors in the region.

India operates the world's largest postal network with over 154,000 post offices. This vast network serves even the most remote areas of the country, making it a unique example of extensive public infrastructure reaching rural populations.

Great Britain issued the Penny Black in 1840, which was the world's first adhesive postage stamp. This revolutionized the postal system by prepaying postage and simplifying mail delivery.

New Zealand became the first self-governing country to grant women the right to vote in 1893, preceding most other nations by several decades in women's suffrage.

Yankee is a colloquial term for Americans, originally used to refer to New Englanders but later broadened to include all Americans, especially during the Civil War era and in international contexts.

The United Nations University (UNU) headquarters is located in Tokyo, Japan. Established in 1973, the UNU is the academic arm of the United Nations system and focuses on research and capacity building. Its location in Japan was chosen as part of UN's global presence.

Correct Answer: China

Vatican City is the world's smallest independent state by both area (0.44 km²) and population (around 800). It is an enclave within Rome, Italy, established in 1929. Sri Lanka (~65,000 km²), Trinidad and Tobago (~5,000 km²), and Indonesia (~1.9 million km²) are all significantly larger countries.

Indonesia has the world's largest Muslim population, with over 200 million Muslims. While Pakistan, Bangladesh, and Saudi Arabia have significant Muslim populations, Indonesia has the highest absolute number.

Spain receives the maximum tourist traffic worldwide, making it the most visited country by international tourists. France typically leads in tourist arrivals, but the question likely refers to the specific context or time period when Spain held this position. The USA and Mauritius are significant but not top-ranked.

Switzerland does not maintain a standing army in the traditional sense. Instead, it relies on a militia system where able-bodied male citizens keep military equipment at home and undergo regular training. This unique defense system is based on the principle of armed neutrality and has been Switzerland's policy for centuries. Australia, Norway, and Sweden all have conventional standing armies.