World Currencies and Brain Facts

The official currency of Russia is the Russian ruble (RUB). The ruble is one of the oldest currencies in the world, dating back to the 13th century. It is subdivided into 100 kopeks and is managed by the Central Bank of Russia.

The official currency of Malaysia is the Malaysian ringgit (MYR), formerly known as the Malaysian dollar. The ringgit is subdivided into 100 sen and is issued by the Central Bank of Malaysia (Bank Negara Malaysia). It was officially renamed in 1975.

The human brain contains approximately 86 billion neurons, not 100 billion as stated. However, the general scale is correct - each neuron can have thousands of synaptic connections (up to 10,000 or more), creating an incredibly complex neural network. The brain's complexity in terms of interconnectivity is indeed unparalleled in the known universe.

This statement is mathematically illustrative rather than literally precise. With approximately 8 billion people each making 200,000 calls, that's 1.6 quadrillion calls. While this doesn't exactly match the brain's synaptic connections (estimated at 100-1000 trillion), the statement effectively illustrates the brain's astronomical complexity in terms that humans can conceptualize.

The official currency of Cambodia is the Cambodian riel (KHR). While the US dollar is also widely used in Cambodia for larger transactions, the riel remains the official national currency. It is subdivided into 10 kak or 100 sen, though the sen is rarely used due to inflation.

The cerebral cortex (grey matter) is indeed highly folded with gyri and ridges to maximize surface area within the limited skull space. When unfolded, the human cerebral cortex would span approximately 2,000-2,500 square centimeters, roughly the size of a large office desk or small table. This folding dramatically increases the brain's processing capacity.

The official currency of Israel is the Israeli new shekel (ILS), commonly referred to simply as the shekel. It replaced the old shekel in 1986 at a ratio of 1,000:1 due to hyperinflation. The shekel is subdivided into 100 agorot and is issued by the Bank of Israel.

South Africa's currency is the rand (ZAR), abbreviated as 'R'. The ruble is Russia's currency, rial is used in Iran and other Middle Eastern countries, and riel is Cambodia's currency.

France adopted the euro in 2002, replacing the French franc. The other options are incorrect: 'frankes' is a misspelling, 'strling' misspells 'sterling' (British), and 'franc' is France's old currency.

Maldives uses the rufiyaa (MVR) as its currency. The rupee is used in India, Pakistan, and other South Asian countries, rupiah is Indonesia's currency, and dollar refers to the US or Australian dollar among others.

Finland used the markka (FIM) as its currency until 1999 when it adopted the euro. Rufiyaa is Maldives' currency, dollar refers to US/Australian currency, and franc is France/Switzerland's old currency.

Indonesia's currency is the rupiah (IDR). Rufiyaa is Maldives' currency, rupee is used in India/Pakistan, and dollar is US/Australian currency. Indonesia is the largest economy using rupiah.

Great Britain's currency is the pound sterling (GBP). 'Pound' alone is incomplete, 'sterling' alone refers to the silver standard, and 'UK dollar' doesn't exist - the UK has never used a dollar.