中央社

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.

央 = ⺆ + 大 : Mnemonic symbol: 中央处理机, central processing unit (CPU).

In front of the anglepod, Maud Younger received her new robot. Soon she is not satisfied with his artificial intelligence; to increase it, she staples a CPU to the center of its chest, although the robot begs her not to do so.

社 = 土 + 礻 : Sherlock Holmes is doing an undercover investigation in the elevator's bathroom. There's a forbidden mysterious cult praying to a fossilized heap of dirt.