They are real with the probable exception of the 100 Dinar Yugoslavian note with the ink stamp on it. It was reissued in Serbia during the German occupation as shown by the overprinting. The note is genuine but the ink stamp, however, is unfortunately questionable. None of the group is of large value with most being in the 1 to 5 dollar range. The grouping in the 1st photo are German Wehrmacht issued notes (and the little one sided bright red 5 pfennig note in the next photo as well)and the 50 RM note is of abit more value than the others in it's group. The little green 50 pfennig note is part of the occupied territories currency which was printed to make it easier to spend money in the over run countries rather than to constantly be changing Reichsmarks for Dinars etc. The 20 Reichsmark and the 50 reichsmark notes in the 3rd photo belong in this group also as does the smaller 5 Reichsmark note with the 2 portraits in the next photo. The other notes are all normal circulation currency for German itself.
All in all, a nice representative grouping of wartime money in decent enough condition! A conglomerate value would likely be around the $50 range. Depending on who you sell them to, it could even go abit higher on a good day.
"Much that once was, is lost. For none now live who remember it."
A mark was worth about .40 cents during WWII. Of course those notes have no monetary value and only historical value at this point.