Like when someone says there was an camel in my frontyard, you can call bullshit (seems like an odd claim but it actually happened a few houses away from me, they were kept on a field nearby belonging to the circus that was there)...they decided to go for a stroll and were eating his garden that was 3 years ago. I remember the same thing happened or or 2 years before/after with another animal I think, but cant find any info besides the camel incident)
Or when you say, I ve been to 160 countries, or when you say I can eat 5 pizzas in 15 minutes.
This quiz however uses the urban area or agglomeration according to citypopulation.de Each country defines this differently though. So it is hard to properly compare.