There’s no such thing as “a real identity” for Brainiac, since he’s had somthing like a half-dozen incarnations over the years. The only “earthly” ID I know of is Milton Fine, who isn’t a P. If I’m wrong, take a DQ.
I think I know who he’s thinking of, and I think the question would have been better phrased “Are you an alias for Brainiac”, or more revealingly “Was it revealed that you were originally Brainiac?”. Bonus hint: he wasn’t particularly “Earthly”.
Were you Adm. Farragut’s half-brother? - David Dixon Porter, who also became an admiral.
Are you credited with devising a popular kind of scam? - Yes, Mr. Ponzi.
Were you Brett’s buddy on the Nostromo? - Parker, played by Yaphet Kotto.
DQs:
Ever ran for President?
One DQ reserved.
IQs:
Did you run for POTUS as the Democratic nominee between 1880 and 1920?
Did Jack Bauer protect you in your first run for President?
Were you a noted cavalry officer of the Civil War?
Correct on Thomas Paine.
John Paul Jones.
Close - it was actually Oliver’s little brother, Matthew Calbraith Perry.
Two DQs reserved.
IQ1: Were you a prospector who resorted to cannibalism after being snowed in?
IQ2: Were you an army general who became president of the US?
IQ3: Did you unsuccessfully run for president several times from the 1960s into the '90s?
Yes, I realized I couldn’t really ask the question without a lot of caveats, especially since Brainiac’s been around for decades and new writers will change and retcon willy-nilly.
I will take Some Call Me… Tim’s suggestion and rephrase it as
IQ1: Was it revealed that you were originally Brainiac? Bonus hint: he wasn’t particularly “Earthly.” Bonus bonus hint: This alleged later version of Brainiac revealed himself to be the original Brainiac.
IQ2: Are you an enemy of Jonah Hex, having obtained your alias from a family business Hex’s father tried to blackmail you over?
IQ3: Is your actual name Gregori Arcane, reanimated by your brother Anton to fight Swamp Thing?
Did you run for POTUS as the Democratic nominee between 1880 and 1920? - Alton Parker lost in a landslide to T.R. in 1904.
Did Jack Bauer protect you in your first run for President? - David Palmer.
Were you a noted cavalry officer of the Civil War? - Alfred Pleasonton.
DQ:
Served in the U.S. Cabinet?
Two DQs reserved, unless Prof. P. lets everyone now holding one ask 'em. What else do we need to know? I can’t figure out who our mystery guy is.
Known for military or war achievements, but it’s not what he’s best known for
Born before 1850
Not known as a businessman/inventor
Born east of the Mississippi River
Born before 1800
Did hold political offices
Two political offices held in Washington, D.C., another was a foreign Ministry
Born south of the Mason-Dixon line
Died after 1825
Did serve in the House of Representatives
Born after 1750
Never ran for President
Served in the U.S. Cabinet
That’s all twenty, folks. Everyone who scored a DQ gets one “Are you Firstname Lastname?” question. In the spirit of the holidays, I will tell you that this man, in addition to his political and diplomatic career, was also a scientist, and that there he has a definite connection to the Christmas holidays we celebrate. You have until 6 p.m. tomorrow. Good luck!
IQ1: Are you a failed LSH applicant with the ability to make things tacky?
IQ2: Did Ultra Boy once suspect you of secretly being Superboy?
IQ3: Did you repeatedly attempt to kill Ted Knight?
…aaand I’m about tapped out for DC P trivia. It may be time to ask DQ 20, or I’ll be tempted to start on the Marvel trivia, and no one wants that.