Welcome to Numista!
I agree with the guidelines above. Having said that, the most valuable coins you've shown are those from the Third Reich (third photo). For all coins the most accurate market value can be obtained by searching EBay for recent sales of coins in similar condition. The U.S. coins (photos 5 and 7) have only face value. For the Yugoslavian coins in the fourth photo the three circulated ones are worth perhaps 25 cents each, while the apparently uncirculated one may be worth a dollar or two. Best of luck to you!