Place names around the world

[doogied]

1. Mean business in Istanbul [ 4,6 ]
2. Ruth is round about this cover [ 5,6 ]
3. Proverbially the most remote place [ 8 ]
4. The sweetest girl I know [ 3,6,4,2,5 ]
5. Proverbially the best reward - the cup runneth over
[ 3,3,3,2,5 ]
6. Pudding cooked sadly on small car [ 5,6 ]
Each answer contains a place name somewhere in the world, would appreciate some help.

[weecalf]

(3) Timbukto (is that spelt right)

[weecalf]

Timbuktu

[kettledrum]

1.. Talk Turkey

[kettledrum]

4. The Yellow Rose of Texas

[kettledrum]

5. all the tea in China

[kettledrum]

I'm wondering if you've got the number of letters for 4 confused with another clue ....?

What about
'It's a long way to Tipperary' to the sweetest girl I know.
Goodbye Piccadilly! Farewell Leicester Square ! ....

whereas The Yellow Rose of Texas is 'the sweetest little rosebud that Texas ever knew'

[jonker]

2. Turin shroud (anagram)

[kettledrum]

6. Baked Alaska .... baked (cooked) + alas (sadly) + Ka (small car)

[doogied]

Thanks, weecalf, kettledrum and jonker, that was quick ! I've checked the number of letters given for question 4 and they are correct as on my entry form.
Just noticed I need another one.
7.Pharaoh's maize [4,2,5 ]

[kettledrum]

Corn of Egypt