Problem: What is the largest river in Europe in terms of length, discharge, and watershed, that flows through central Russia, and has some of the largest reservoirs in the world?
Answer: volga

Problem: Singer-songwriter Carole Klein was better known by what name?
Answer: carole king

Problem: Pop. 'Tubthumping' was a 1997 no.2 hit for which group?
Answer: chumbawamba

Problem: Anti-retroviral drugs are used to treat what disease?
Answer:
hiv