Balik kavağa çıkınca ---> When a fish climbs up to a poplar tree. 

We use this phrase for something that we believe , it will never come true [it will never happen]. As we know, poplar trees are tall trees, and the chance that a fish will climb up to a tree [especially to a poplar tree] is zero. In other words  it is "impossible".

example ;

- Bu adam kahveye gitmeyi ne zaman bırakacak ? 

- Balık kavağa çıkınca ! 

- When this man will stop going to kahve [men´s caffe] ?

- When a fish climbs up a poplar tree ! [ NEVER !]

 I think , in English there is smilar phrases such as ; "when pigs fly"

I am glad you like Turkish phrases, and in general your interest in Turkish Language. Good for you ! I always say, learning Turkish is a big investment as Turkish is getting more popular in the world day by day, I see people have big desire in Learning Turkish which makes us happy. 

The smilarity of phrases between languages are cool, that is may be because we as human beings react things in life in smilar ways and express them in different language. Thats because we all are the sons and daughters of  "Adam and Eve" 

Bal dök yala --> Although it is slang, we use this phrase when we describe especially very clean and shiny surfaces or places. It means ; It is so clean that you can pour honey on it and lick. 

Mutfak o kadar  temiz ki  bal dök yala -->  The kitchen is so clean and shiny that you can pour honey [on surfaces of kitchen]  and lick it. 

Arada sırada ---> Literally "in between and line " which means " sometimes, now and then , occasionally."

Arada sırada bana mektup bazar ---> Occasionally she writes me letter.

Arada sırada futbol oynarım --->  I play football sometimes.

Saints can not be checked St.Faruk

Our nomination for Pope would be you if you do couple of more long translations

Gözü hiç birşeyi görmemek --> literally " One´s eyes see nothing" ,which is used for a person who focuses on something or someone so much that he can´t see other things [person] around him. He ignores other things and focusses on one thing or one person.

Onun gözü Ayşe´den başkasını görmüyor ---> He sees nobody but Ayşe. [ He thinks and care about Ayşe only and he ignores all other girls.]

Gözü yükseklerde olmak = literally One´s eye being on heights , which is used for a person who desires [aims] to be [reach] in much higher position than his current position. 

Tam bir KPSS sorusu hocam. Gerçekten şimdi merak ettim nasıl deniyor ingilizcede  bu şey, bilen varsa hayrına söylesin. Benim matematik sucks.. 

Clever Gökuyum !  Btw where is our translators ???  Are they all on strike ? 

Fractional adjectives [Kesir Sayı Sıfatları]

In Turkish , we call these type of adjectives as " fractional number adjectives"

Fractional numbers are like 1/3, 4/6 , 3/9 ..etc

A written-out fractions are like  dörtte bir  [çeyrek] ---> a quarter [one fourth]

and functions as adjectives when it modifies a noun ;

Payımıza dörtte bir  ekmek düşüyor. ----> One quarter bread is for each.

Burada yarım saattir  bekliyorum. ---> I have been waiting  here for half an hour.

some others ; 

iki   buçuk  ---> two and half 

yüzde  bir   ---- > one in a hundred

üçte  bir    ----  >  one  third

etc…