Which 1970s Swedish group had hit songs "Fernando" and "Chiquitita"?

ABBA

Which bird species clears a dancing ground called a lek to impress females? What race is known as 'the fastest two minutes in sports'? Which nation's capital is Bratislava? What capital city did Suleiman the Magnificent fail to capture in 1529 and 1532? What cereal grain is most commonly used to produce beer?