人生地不熟

人 = 丿 + ㇏ : Mnemonic symbol: Neanderthal Man (人). Robinson Crusoe (r-) is looking for snacks in the encampment's kitchen (-en2) when he suddenly spots Neanderthal Man (人). Neanderthal Man offers him a banana (丿), but Robinson Crusoe doesn't trust the present and pokes it with a finger (㇏).

生 = 牛 + 一 : Mnemonic symbol: a cradle.

Sherlock Holmes (sh) comforts a crying baby bull (牛) in a cradle (生) in front of the engine ((e)ng1) and plays him a tune on a flute (一).

地 = 也 + 土 : Dorothy Gale (di) hates the cleanliness of the space station, so she used an excavator (也) in the space station's bathroom (Ø4) to dig a pile of dirt (土) out of the ground (地) for a mud bath.

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

熟 = 享 + 丸 + 灬 : Sheldon Shrimp (shu) concocts an elixir against his stomach ache in the space station's kitchen (Ø2). On a small grill (灬) He put a drink (享) in which he dissolves a whole bag of painkillers (丸). When the pills are fully dissolved, his elixir is done (熟).

熟 = 孰 + 灬 : The riddler captured Sheldon Shrimp (shu) in the space station's kitchen (Ø2) and threatens to put him on a grill (灬) and cook him until he is ripe (熟) if he fails to win a game of "who am I" (孰).