I must say I was very disappointed. I thought it would be challenging and fun, but instead it felt like it was made for poeple with lesse knowledge of the outside world. In many of the pictures the country's name what clearly written in the coin. In some pictures it was badly blurred out.
Just look at these:

I've never seen this coin before, but hey, I can read though. And six times? Really?

Again, the country's name is clearly written out both on banknotes and coins. And if you can't read it, you probably know Mao Zedong.

Of all the coins they could've chosen, they chose a coin with the word "Delhi" on it.

Again, didn't even try.

Why did they chose to turn a coin around? Because the country's name is written on that side?

Clear as a day. Didn't even try to blurr it out.

I was really usure about this one, and was first thinking about the Caymans. Then I noticed that the answer was written in the picture.

Sure, it's not written in English, but still, are only monoligual English speaking people allowed to play?

Six times the charm!

Again, clearly written out. And not too hard to guess too, right? Even if you only know one language.

Sure, Arabic is a tricky language. But it's not as tricky as blurring a picture. No one can readArabic anyway, so I just have to blurry the English part, right?

Do I even have to mention I got 'em all? Please make a more challenging one!