General Knowledge

The first known crossword puzzle was published in 1913 by Arthur Wynne in the New York World newspaper, making option A the correct answer.

As of the latest information, ASEAN consists of 10 member countries. This is a well-established fact in current international relations.

Blind dolphins, also known as Indus river dolphins, are found in the Indus River of Pakistan. They are a freshwater species adapted to the river environment, making option A correct.

The concept of the parachute was first sketched by Leonardo da Vinci in the late 15th century, but the first practical parachute was created by Louis-Sébastien Lenormand, who made a jump from a tree in 1783 using a device made from two umbrellas. The first recorded parachute jump from a hydrogen balloon was performed by André-Jacques Garnerin in 1797. Therefore, the 1783s (option C) is the closest correct decade for the invention of the parachute as a practical device, while the 1570s (option B) is incorrect.

Freetown is the capital city of Sierra Leone, located on the Atlantic coast of West Africa. It is not the capital of Somalia, Slovenia, or Cuba.

The ancient town of Takshasila (Taxila) was located in the northwestern part of the Indian subcontinent, situated on the fertile plain between the Indus (Sindhu) River to the west and the Jhelum (Hydaspes) River to the east. This places it between the Indus and Jhelum rivers, making option A correct. Although some sources mention its proximity to other rivers, the most authoritative sources like Encyclopaedia Britannica confirm its location between the Indus and Jhelum rivers, not between Jhelum and Chenab.

Dushanbe is the capital city of Tajikistan, a country in Central Asia. The other options are capitals of different countries or incorrect spellings.

The United Nations General Assembly traditionally convenes its annual session in September, typically starting on the third Tuesday of the month.

The book "The Spirit of Islam" was written by Syed Ameer Ali. He was a prominent Muslim scholar and historian known for his works on Islam and its history.

The Scientific Bureau of the Economic Cooperation Organization (ECO) is located in Tehran, Iran, which is the headquarters of ECO. Therefore, option A is correct.