Skillnaden mellan "förre" och "förre detta" Is there any difference between these two since they seem to mean the same

fördröjningen vs försening Is there a difference at all? :)

Could anyone translate what they say in this video? :) https://www.facebook.com/photo.php?v=527359097409627&set=vb.338233632988842&type=2&theater As in what the commentator is saying? Thanks in advance :)

Bäst eller Bästa I understand that they're meant to follow the general adjective rules of en/ett/plural forms but it seems that even for "en bästa vän" one uses bästa rather than bäst although it's singular form, so I was wondering if anyone knows why.. Tack :)

Hur mycket som helst - in english Det är hur mycket folk som helst och helt fantastiskt. Its from this sentence and Im unsure as to the meaning of the hur mycket som helst part. If anyone knows thatd be great :)

How would you say "until when do you serve dinner" I was just wondering what the translation of that is in Swedish

Is there a difference between "bäst" and "bästa"? and "först" vs "första", Im guessing it would be the same principle? Because they don't seem to follow the usual adjective rules

Definite Noun - Den/det Does anyone know why it is "den lilla flickan" rather than just "lilla flickan" because I thought den/det was left out in definite nouns.

Skillnaden mellan "Annan" och "Andra" And a little question on the side, would it be: "Vad är Skillnaden mellan de två" or "Vad är Skillnaden mellan dessa två" Thanks :D