UnScramble this Word: a f i y n t q u?

Questions

In 1903 Sir Arthur Conan Doyle published which book?

Which British prime minister said 'You never had it so good'?

Which actor was Howard Hughes describing when he said 'His ears make him look like a taxi cab with both dooors open'?

What was Goebbels' role when he served under Hitler during WWll?

Who was the first actor to receive an Oscar postumously?