Mixed GK

Bandar Seri Begawan is the capital and largest city of the Sultanate of Brunei. The other options listed are districts within the country.

China has the largest population and the highest number of television sets in the world. While the USA was historically the leader, China surpassed it due to its massive scale.

René Théophile Hyacinthe Laennec invented the stethoscope in 1816 at the Necker-Enfants Malades Hospital in Paris. He was a French physician who pioneered the use of the device for auscultation.

Ferdinand de Lesseps was a French diplomat who developed the Suez Canal Company and oversaw the construction of the canal between 1859 and 1869.

Heidi is a classic children's novel written by the Swiss author Johanna Spyri, first published in 1880.

An airship is a type of aerostat or lighter-than-air aircraft that can navigate through the air under its own power. They are also commonly referred to as dirigible balloons.

Freon is a trade name for a group of chlorofluorocarbons (CFCs) and related compounds used primarily as refrigerants. Neon, Boron, and Krypton are chemical elements.

Otto von Bismarck, the first Chancellor of the German Empire, was known as the Iron Chancellor due to his uncompromising and strong-willed approach to politics and unification.

Lewis Edson Waterman is credited with inventing the first practical fountain pen in 1884, which featured a reliable ink-feed system.

Liquid hydrogen is a common high-energy rocket fuel used in space exploration because it provides a high specific impulse when burned with an oxidizer like liquid oxygen.

Cheviot is a breed of sheep, not a goat. Cashmere, Toggenburg, and Saanen are all well-known breeds of goats.

In Islam, 'Sawm' is the Arabic word for fasting, which is one of the Five Pillars of Islam observed during the month of Ramadan.

CAT stands for Computerised Axial Tomography. It is a medical imaging technique that uses computer-processed combinations of X-ray measurements.

Dendrology is the scientific study of trees and other woody plants. Pedology is the study of soil, Oology is the study of eggs, and Orology is the study of mountains.

Ernst Ruska and Max Knoll invented the first electron microscope in 1931. Ruska later received the Nobel Prize in Physics for this work.

Osteology is the scientific study of bones, practiced by osteologists. It is a sub-discipline of anatomy, anthropology, and archaeology.

Tear ducts (lacrimal ducts) are responsible for draining tears from the eyes, which keep the surface of the eye moist and clean.

The Labrador Retriever has consistently been one of the most popular dog breeds in the world, particularly in the USA and UK, due to its friendly nature and versatility.

The Basenji is a breed of hunting dog known for its unique larynx shape, which prevents it from barking, earning it the nickname 'Barkless Dog'.

Ichthyology is the branch of zoology devoted to the study of fish. Herpetology is the study of reptiles/amphibians, Entomology is the study of insects, and Ornithology is the study of birds.

Rabat is the capital city of Morocco. Tunis is the capital of Tunisia, Caracas is the capital of Venezuela, and Sofia is the capital of Bulgaria.

The current currency of Brazil is the Real. The Cruzeiro was a former currency of Brazil, but the question implies current status; however, given the options, Cruzeiro is the only Brazilian currency listed.

Christopher Latham Sholes is credited with inventing the first commercially successful typewriter in 1868. Samuel Colt is known for the revolver, J.B. Dunlop for the pneumatic tire, and Charles Babbage for the mechanical computer.