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Which African lake is the world’s second-deepest lake and borders Tanzania, the Democratic Republic of the Congo, and Zambia?
Answer
Lake Tanganyika
In which year did the Berlin Wall fall, opening a major route between East and West Berlin?
Answer
1989
What is the surname of House, M.D.'s central diagnostician, Gregory?
Answer
House
What machine did Leonardo da Vinci design to make a rope by twisting strands together?
Answer
Rope-making machine
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What machine did Leonardo da Vinci design to make a rope by twisting strands together?
Answer
Rope-making machine
What musical instrument did Leonardo da Vinci redesign with a keyboard and multiple strings?
Answer
Viola organista
What type of machine did Leonardo da Vinci design to imitate a human-powered walking soldier?
Answer
Mechanical knight
What transport machine did Leonardo da Vinci draw with four wheels and a wound-spring propulsion system?
Answer
Self-propelled cart
What did Leonardo da Vinci call his 1480s spiral machine intended to lift air?
Answer
Aerial screw