Which countries show the sun on their flag? If it looks like the sun we'll allow it, but note that two flags' "suns" are actually representations of the full moon!
The sun must be clearly visible on a thumbnail image of the flag, so we have omitted Costa Rica, Ecuador and Moldova where the sun appears as a tiny part of their flag's coats-of arms
Most quiztakers, like me, would not be able to tell if a particular a full disc is a sun or full moon - especially as Palau's one is yellow! A note has been added to the instructions.
Ecuador also has a tiny sun on the coat of arms. Not readily visible in a thumbnail, so omission fair enough - but should be stated as such in the instructions.
Also, Macedonia is now more correctly North Macedonia.
Also, Macedonia is now more correctly North Macedonia.