no of course they dont
Twilight themes are present in Google Chrome web store. They can be easily added to Chrome for their application.
No, but you can find a Tumblr theme on Google.
Go to the Google store and go to themes.
No
Google Chrome can be easily customized. There are numerous themes which can be applied on it.
On Google
I found out that the themes are, Guilt and innocence and Wealth and poverty. Just search for themes of A Christmas Carol on Google and it will find lots of answers for you.
No, It's free.
Ask google
You can visit the Google app store to know that. Google apps that are free do not charge money for them.
No, Google Talk does not charge anyone. It is completely free of cost until you do voice calling. Voice calling to a phone number is chargeable by Gmail.