Polonya bayrağı ne renk? What color is the polish flag?

Polonya bayrağının rengi ne? What is the color of polish flag?

You can use both of them. Meaning is almost same.

Emphasis is a little bit different. Polonya bayrağı ne renk? In this sentence you are more interested in the color type. Polonya bayrağının rengi ne? In this sentence you are more interested in the polish flag, not french flag or german flag.

If you insist on using "polish" we can say:

Polonyalıların bayrağının rengi ne? What is the color of polish people´s flag?

only humans can be "polonyalı", not flags or other inanimated things in turkish.

Polonya bayrağının rengi ne?

What is the color of polish flag?

(Literal translation from turkish: What is the color of Poland´s flag?)

seyret + ecek + ti + n
You were going to watch

Another meeting point!

The easiest place to find, there is only one in whole turkey. Also it is in the city center. I have no idea where we can go afterwards...

I dont joke.

if it is gezi park, i am going to come. I like to take adventures!

if it is somewhere else i may come.

if it is a bar, disco etc. i will not come.

let me offer somewhere else safer: gülhane park. I like open air!

And dont be afraid. Nothing happens. They just ask the same questions to everybody:
"Why do you meet there?"
"Who is your leader!"
"Why dont you meet somewhere else but there?" etc.
After the questioning they will release all of us.

let´s meet at gezipark.
after or in the middle of meeting we may have a free trip to a police station!

i am interested in this. i may be there, Just tell me the exact date when you agree.

Meeting at a certain date and hour and giving member the opportunity to introduce themselves sounds better to me. otherwise everyone may not have chance to know all others. you may give a 1+ minutes speech to the crowd...

if it is literal meaning, then use "tane" between the number and noun to prevent misunderstanding.

arka bahçede yüz (tane) araba gördüm. : i saw hundred cars at the backyard.

aynada yüz tane yüz gördüm: i saw hundred faces in the mirror.

"tâne" means quantity. "a" pronounced long.