Rumpelstilzchen - Märchen - Deutsch lernen

A miller boasts to a king that his daughter can spin straw into gold. The king tests her, threatening her life if she fails. A little man helps her in exchange for valuables. On the third test, she promises her first child. After becoming queen, she must guess the man's name to keep her child. She succeeds by learning his name is Rumpelstiltskin.

What did the queen do to try to discover the little man's name?

What was the little man's reaction when the queen finally guessed his name?

What was the ultimate fate of the little man after the queen discovered his name?