Which word means both an acrobat and a flat-bottomed drinking glass?

What term for an accomplished young man is also a nickname for Batman's sidekick Robin? In a criminal trial, the accused person together with his or her lawyers is known as what? In golf, an "ace" is another term for which feat? Complete the idiom for an achievement: "a feather in your ___." An act of the early 1900s united the Cape Colony, Natal, Transvaal and Orange River Colony to form which country? A 1986 act named the chairman of which panel as the president's principal military adviser? An act of March 3, 1863, established what, which became the subject of riots in New York that July? The "Act to Provide for the Better Government" of which island divided it in two in 1920?