Q: What city that is home to Africa's tallest building (the Carlton Centre) is the largest city in the world not on a lake, navigable river or by the coast?
A: johannesburg

Q: In which US state is the Lake Ponchartrain Causeway, the longest bridge in America?
A: louisiana

Q: What is the name of the music website founded by Daniel Ek and Martin Lorentzon and launched in 2008?
A:
spotify