砂
=
石
+
少
:
Sherlock Holmes (sh) wants to join the ashram. In front of the ashram (a1) he has to grind a rock (石) into sand (砂) while Smiley (少) is supervising him in order to prove himself.
wheel / disk / ring / steamship / to take turns / to rotate / by turn / classifier for big round objects: disk, or recurring events: round, turn
轮
=
仑
+
车
:
Lenny Lemur (lu) is driving his cabriolet (车) through the encampment's kitchen ((e)n2). It is very hard to drive there because all the blackcurrant berries (仑) get stuck in the wheels (轮).