(1) In 1895's Moore v. United States, what term did the U.S. Supreme Court define as "the fraudulent appropriation of property by a person to whom such property has been entrusted, or into whose hands it has lawfully come"?
(2) The literary characters Gelert, Argos, Gaspode, and Tock are all what, most distinctively?
CONCERNED ABOUT YOUR ATTITUDE LATELY
(3) In American football, an official pointing an extended arm toward the defensive team's goal, with the hand flat (or pointing a finger) and perpendicular to the ground, is giving the signal for what?
GET THAT CAT OFF THE FIELD
(4) In China in the third century CE, immediately following the end of the Han dynasty, supremacy was fought for among the Wei in the north, the Wu in the southeast, and the Shu Han in the west. This period is best known by what name, which is cited in a classic of Chinese literature attributed to Luo Guanzhong.
THE GREAT BRAWL OF CHINA
It's between (3) & (4) on which gets cut. I just like the other two too much. I could be picky with (4) on the pun being in English only, obviously. Kinda like I disqualified this one cuz it's obviously not invisible---
An invisible demarcation that runs, in part, through the Bering Strait, around Kiribati to the east, and between Samoa and American Samoa, is best-known by what three-word term?
FLOATING GARBAGE PATCH
---or how I decided I could be picky (for not involving the idea in the end of the question) about this one, which'll probably get a lot of votes without my help:
What was the name of the pop-vocal quintet formed in the late 1960s featuring Marilyn McCoo and Florence LaRue which, despite its name, was visible to humans and did not appear to involve the unification of the forces of gravity and magnetism?
Still, maybe (4)'s better than (3), which is just silly.
Then again, I like silly. That silly, anyway.