catwoman, to my great amusement, you have proven my point. the quiz answer marked correct was neptune. you're welcome.

Which planet has the most moons?

Saturn is marked as incorrect despite being the correct answer.
https://science.nasa.gov/solar-system/moons/

Which country has the highest population?

the correct answer should be India.
https://www.worldometers.info/world-population/population-by-country/