So can one use "yada" instead of "veya"? It's the first time I'm hearing the term veya.
Yes, "veya" and "ya da" mean the same but "ya da" is written as two words. (Not "yada" but "ya da")
How would "su" be pronounced? I tried listening to the audio, but a little help would be greatly appreciated.
Just like the pronunciation of "sue" in American English (not British) as NAmE /suː/ but only with a shorter u
Merhaba ben sana bir şey var mı diye konuştu ama ben bu günlerde bir şey yok ki de bir Davutoğlu lazım da
You should follow the word order in Duolingo exercises because it says "bread or water" although in real life it does not make any difference.