Misc: What is the actual vat in Romania?

Questions

In a famous opera, siegfried understood the speech of birds after tasting ______?

In a famous opera, what did siegfried understand after tasting dragon's blood?

In a famous opera, who understood the speech of birds after tasting dragon's blood?

In a game of horseshoes, how many feet apart must the stakes be?

In a general sense, one who pleads for another in a court of law or other tribunal.?