General Knowledge

The Leaning Tower of Pisa is approximately 57 meters tall, making option C the correct answer. The other options are significantly higher or lower than the actual height.

Dynamite was invented by Alfred Nobel in 1867 as a safer and more manageable explosive compared to nitroglycerin. This invention significantly impacted construction and mining industries.

IBM acquired Red Hat in 2019 for approximately $34 billion in a cash transaction, paying $190 per share for all outstanding Red Hat stock. This acquisition is widely reported by reputable sources such as CNBC, Reuters, and Forbes. Therefore, the correct answer is option B ($34 billion).

Dili is the capital city of East Timor (Timor-Leste). The other options are capitals of different countries: Roseau (Dominica), Quito (Ecuador), and Bogota (Colombia).

NRO stands for National Reconciliation Ordinance, which was a legal ordinance in Pakistan aimed at granting amnesty to politicians and bureaucrats.

Brazil has won the FIFA World Cup five times, which is more than any other national team. France, Germany, and Spain have fewer titles compared to Brazil.

The United States officially designated ISIS (Islamic State of Iraq and Syria) as a Foreign Terrorist Organization on December 29, 2011. While the exact date is not among the options, the closest date provided is June 15, 2015, which aligns with the period when the US intensified its actions against ISIS as a terrorist organization. The other dates listed do not correspond to the official designation or significant policy milestones related to ISIS's terrorist designation by the US government.

The Asia Cup 2018 was held in the United Arab Emirates (UAE) due to political tensions between India and Pakistan, making UAE the correct host country.

The United States Open Tennis Championships was founded in 1881 and originally played on grass courts. It switched to clay courts from 1975 to 1977, and then to hard courts in 1978. The year 1913 is notable for the formation of the International Lawn Tennis Federation and other organizational changes, but the tournament was not founded as a hard court event then. Since the question asks about the founding as a hard court tournament, the correct answer is 1978, which corresponds to option D (1913 is incorrect for hard court founding, but since 1978 is not an option, the question and options should be corrected). However, given the options, none correctly state 1978. The best approach is to correct the question to ask about the founding year of the US Open (1881) and clarify the surface history in the explanation. Alternatively, if the question specifically asks about the founding as a hard court tournament, the correct answer is 1978, which is not listed. Therefore, the question and options should be revised to reflect accurate information.

Damascus is widely considered one of the oldest continuously inhabited cities in the world, predating Cairo and Baghdad. Therefore, option A is correct.