Based on the clue 'containing the name of a defunct kingdom this iron...', what is the answer?

What is associated with: containing doylestown quakertown its home to 600000 pennsylvanians? What is referred to by 'containing iron'? Based on the clue 'containing less than 1 of the mass in the solar sy...', what is the answer? Based on the clue 'containing the hit can you feel the love tonight i...', what is the answer? Based on the clue 'contains the lowest point in the nation', what is the answer? What is associated with: contemporary virtuoso cellist whose boys robbed banks in the 1930s? Based on the clue 'contented performing kittens might be paid this wa...', what is the answer? Based on the clue 'contes de ma mere loye by charles perrault is a co...', what is the answer?