General Knowledge: World Currencies & Mathematics

The United Kingdom's official currency is the pound sterling (£). The Euro is used by many European Union countries, but the UK retained the pound. The franc is used in Switzerland and formerly in France, while the peso is used in several Spanish-speaking countries.

Kuwait's official currency is the Kuwaiti dinar, one of the highest-valued currency units in the world. Ringgit is used in Malaysia, litas was formerly used in Lithuania, and dirham is used in several Middle Eastern and North African countries.

Malaysia's official currency is the ringgit (RM). The dalasi is used in Gambia, won in South Korea, and pound in the UK and other countries.

Brazil's official currency is the real (R$), introduced in 1994 to stabilize the economy. Krone is used in Scandinavian countries, pound in the UK, and won in South Korea.

Germany adopted the Euro (€) in 2002 when it replaced the Deutsche Mark, participating in the European Union's single currency system. Dollar is used in the US, won in South Korea, and franc in Switzerland and former French territories.

Tokyo is the world's most populous capital city, with its metropolitan area home to over 37 million people. While Beijing and New Delhi are also very populous capitals, Tokyo's greater urban area has the largest population.

14^8 = 14 × 14 × 14 × 14 × 14 × 14 × 14 × 14 = 1475789056. This is straightforward exponentiation - multiplying 14 by itself 8 times. The other options differ by small amounts to catch calculation errors.

17^8 = (17^4)^2 = 83521^2 = 6975757441. Option B correctly gives this value. The distractors (A, C, D) are close but incorrect values.

13^8 = (13^4)^2 = 28561^2 = 815730721. Option A correctly gives this value. The distractors are close but incorrect.

28^8 = (28^4)^2 = 614656^2 = 377801998336. Option D correctly gives this value. The other options are close but incorrect.

33^8 = (33^4)^2 = 1185921^2 = 1406408618241. Option B correctly gives this value. The distractors are close but incorrect.

13^7 = 13 × 13^6 = 13 × 4826809 = 62748517. Option B correctly gives this value. The other options are close but incorrect.

The official currency of Thailand is the Thai baht. The franc is used in Switzerland and former French colonies, the peso in Philippines and Latin American countries, and the ruble in Russia.

27^5 = 27 × 27^4 = 27 × 531441 = 14348907. Option C correctly gives this value. The distractors are close but incorrect.

The official currency of South Africa is the rand. The somoni is Tajikistan's currency, shilling is used in Kenya and Tanzania, and ruble is Russia's currency.

Vatican City uses the euro as its official currency, despite not being an EU member. The peso is used in Philippines and Latin America, franc in Switzerland and former French colonies, and ruble in Russia.

North Korea's official currency is the North Korean won. South Korea also uses the won (South Korean won). The kwacha is used in Zambia and Malawi, rufiyaa in Maldives, and peso in Philippines and Latin America.

Austria's currency is the Euro, as it is a member of the European Union. Option C is correct. Options A (dollar - USA/others), B (real - Brazil), and D (dinar - various Arab countries) are currencies of other nations.

Albania's currency is the Lek. Option A is correct. Options B (Dinar - used in Iraq, Algeria etc.), C (Schilling - former Austrian currency), and D (Yuan - Chinese currency) are not Albanian currency.