The ukulele is a Hawaiian musical instrument developed from the Portuguese guitar. It has a fretted fingerboard and four strings that are plucked or strummed. A similar instrument is the banjolele, which has a banjo body. The ukulele became popular in the US through a 1915 exposition held in San Francisco, at which the Hawaiian Pavilion featured a guitar and ukulele ensemble. Vaudeville performers took it up, and its popularity spread. “Ukulele” is Hawaiian for what? Discuss
Source: The Free Dictionary
For the entirety of his Major League Baseball career, Ray Chapman was a shortstop for Cleveland. He set a team record for stolen bases that would stand for decades, but his career was tragically cut short when he was hit in the head by a pitch thrown by Yankees hurler Carl Mays. According to eyewitnesses, Chapman likely never even saw the ball. He is the only Major League Baseball player to have died as a result of an injury received in a game. His death led the league to establish what rule? 
Also known as Roque or Rock, 
Wundt was a German physiologist and psychologist who stressed the use of scientific methods in psychology. Regarded as one of the fathers of psychology and the founder of experimental psychology, Wundt is credited with many firsts in the field: he gave the first course in scientific psychology in 1862, established the first psychological laboratory in 1879, and founded the first journal of psychology in 1881. What famous expression is attributed to Wundt? 
Salmonella is a certain type of bacteria, several species of which are responsible for typhoid fever, paratyphoid fever, and food poisoning in humans. It is usually contracted from poultry, meat, or raw eggs and from food that has been cooked or frozen and not eaten right away. Salmonella poisoning could also result from handling reptiles, such as iguanas or terrapins, which commonly host the bacteria. According to the US government, what percentage of chickens is contaminated with salmonella? 
One of the oldest amusement parks still in operation, Denmark’s Tivoli Gardens opened in 1843 with a variety of attractions, including a theatre, bandstands, amusement rides, and, of course, flower gardens. Tivoli is said to have inspired Walt Disney’s plans for his own park. Today, the park is best known for its wooden roller coaster, built in 1914. What did Tivoli founder Georg Carstensen reportedly tell King Christian VIII about the park to obtain a five-year charter for the site? 
The Prince’s Birthday is a national holiday in 
John Metcalf, popularly known as Blind Jack, was a civil engineer and the first professional road builder of the Industrial Revolution. He lost his sight to a smallpox infection at age six and earned a living in early adulthood as a fiddle player. Though he was unable to see, he swam, played cards, rode horses, and even hunted. In 1765, Parliament passed an act authorizing turnpike building, and he won a contract to build a new road. How many miles of roadway is Metcalf said to have built?