Don’t cheat. Do you know how many countries there are in the world?
Somewhere between 190-200, depending on what you choose to define as a country.
Going by UN membership, it's 193, if South Sudan is included, (I can't remember if they're part of the UN yet).
In addition to those, however, are a few non-member states like Taiwan or Kosovo, which are widely considered to be de facto
countries, even without UN membership.
Taking the most widely-accepted of those into account, the number, I think, is 196.
And yes, I did know all that off the top of my head.