No such treaty exists between UK-Japan. Japan has extradition treaties with two countries, USA and the Republic of Korea (in effect as of 2006).
yes
No. Russia called for the ratification of an extradition treaty in 2009, however there was no American response.
no because they are from pakistan
Yes, however Norwegian courts refuse to allow extradition on the grounds that prison conditions in the USA are inhumane.
Czech Republic
Iceland
The legalese of the South African Justice Department on its website is unfortunately difficult for the layman to understand as far as an extradition treaty between the Republic and the UK is concerned. It states that South Africa had "designated" the UK, among others, in terms of a section of the Extradition Act. But according to a British source the British have extradition partners all over the world, divided into two categories: certain members of the European Union and other countries. These include countries such as the United States as well as South Africa.
According to the Wikipedia article "Extradition law in the United States", Indonesia is one of about fifty countries that do not have an extradition treaty with the U.S. - Indonesia does not have an extradition treaty with the United States for most crimes, however they do allow extradition to the US for drug smuggling or other drug-related crimes.
All EU Member States surrender to each other on the basis of the European Arrest Warrant.
As far as my research shows, Ecuador does have an extradition treaty with the US. There is a link to a PDF describing that treaty in the related links.
Dubai has extradition treaties at least with Afghanistan, the UK, Australia, and Iran, if not others.