assuming it should not only be categories I’m knowledgeable in, but also categories likely to leave a sizeable number of other folks unable to come up with the answers…
…“the lives and times of AHunter3” would be cheating, I suppose? 
OK, lessee…
**Using Macintosh System 6
Feminist theory 1967-1990
FileMaker Pro database technique
History of the psychiatric inmates’ liberation movement in America
Biology of the human body**
Robert Redford
Things my husband has said (1985 to the present)
Things my husband has done wrong (1985 to the present)
Promises my husband has failed to keep (1985 to the present)
Differences between my husband and Robert Redford
Economics
Constitutional Law
American Sports (don’t care if it’s this general - any of them, really)
SNES-era Console RPGs (here we go specific just to even things out!)
Aaron Sorkin’s Creations
1920’s Style Death Rays
Songs with three letter titles by good looking new age groups
Hi, Opal
Visits to The Mariana Trench
Og
Things that can break in a 1991 Ford Tempo
Jimmy Buffett songs
Strip joints of Cleveland Ohio
Baseball
Doonesbury Deluxe
AIAW, NCAA, or WBA?