This American actor won the Oscar for best actor in a leading role for his performance in the movie

This American actor won the Oscar for best actor in a leading role for his performance in the movie 'Dallas Buyers Club'. He celebrates his birthday today. Who is he?
Where would you find the 'Sea of Tranquility'?
A Megagon is a polygon with _____ sides. Fill in the blanks.
Who composed the famous classical music melody - 'Fur Elise'?

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