is ciasteczka the diminutive form of ciastka? or are they different words
It is the diminutive form (ciastko - ciasteczko; plural: ciastka - ciasteczka.). Note also that "ciasto"= "cake (or dough)".
So what's the difference between Moj and Twoj. Both say singular masculine and nominative.
Well, the meaning: "mój" = "my", "twój" = "your (thy)" (the possesive form of "you, y'all" is "wasz" (for masculine nouns in the nominative)).
"Mój koń" = "My horse", "Twój koń" = "Your horse" (horse is a masculine noun in Polish, the case used here is the nominative)
"Moja krowa" = "My cow", "Twoja krowa" = "Your cow" (cow is a feminine noun in Polish)
"Widzę mojego konia" = "I see my horse" (here you use a different case and the words are inflected ("widzę mój koń" is incorrect!))
What is difference between twoj and wasz?, how can i use it? Need examples please...
The grammatical number. In English, when you say 'you' or 'your' it does not show whether you mean singular 'you' or plural 'you'. Polish shows it.
Therefore: you will use "twój" if the horse belongs to Adam and you're talking to him. You will use "wasz" if the horse belongs to Adam and Julia (even if you're just talking to Adam, you still may easily use 'wasz' because you mean both him and Julia).
Cookies are a very special kind of biscuit in British English please accept cakes or biscuits
Nothing that Google Graphic shows for "cakes" resembles "ciasteczka"...
Because "ciasteczka" are plural. If the word "ciasteczka" was a feminine singular word, then its Accusative form would be "ciasteczkę" indeed. But the singular form is "ciasteczko" and it's neuter.
Regarding pronunciation are "koń" and "je" clearly separated or is there some merging of the similar sound ie. more like "kon-je"?
Cookies is not a frequently used word in British English. Biscuits sounds more native to me as a 70 year old Brit. But maybe its just my age!!!
Very similar, but note that 'ó' makes an /u/ sound in Polish where it would be an /o/ sound in Russian.
Yes, but still very close :) That's great because I'm learning both right now, and instead of confusing them I can remember both of them well because of their similarity