The Kuwaity Dinar.
1 KWD = 3.54170 USD
1 KWD = 2.73842 EUR
1 KWD = 2.27702 GBP
If you mean literally hard, then metal coins (found in many countries) would be the hardest.
Euro Is the best currency in the world
Vietnam currency dongo
Currencies based on natural tender rather than man-made tender will be the hardest to forge. Cowry shells are difficult to forge, so are rare metals (such as gold), and most minerals (such as diamonds).
Kuwaiti Dinar
If you mean literally hard, then metal coins (found in many countries) would be the hardest.
Diamond is the hardest substance in the world
The hardest natrual occuring solid in the world is Diamond
its the third hardest exam in the world
yes.
c b s e is the hardest course in the world
30 on the WORLD'S HARDEST GAME on AddictingGames
No, diamond is the hardest known natural substance in the world.
The hardest question in the world is subjective and can vary from person to person. Some philosophical questions, such as the meaning of life or the nature of consciousness, are often considered challenging to answer.
It is subjective and varies from person to person. Some commonly considered difficult languages for English speakers include Mandarin Chinese, Arabic, and Japanese due to their complex writing systems and grammar structures.
More information is needed to properly answer this question. The top 10 hardest firms in the world is too broad. Do you mean the hardest firms to get hired by, the hardest firms to work for, the hardest firms to sue?
no thats why it is the world hardest game