'Tsumetai yubiwa'.
"Ring is 'ringu' in Japanese." You may also say 'yubiwa' when referring to the kind worn on a finger.
koori no WA
'Ashi ga tsumetai desu.'
Yes. The Japanese islands are part of the ring of fire.
You may say 'koori no ringu,' written: 氷のリング
"Soko samui desu ka?" would be "Is it cold there?" in Japanese.
風邪を引いた Kaze o hiita
Samui. If you wanted to say it as in the weather, you would say: samui desu Samui is only a measure of cold in terms of atmospheric temperature. To say that something is cold, that is, as a descriptive (ice, water, etc) then you would use "tsumetai."
yubiwa
The phrase 'cold heart' would be translated as 冷淡な心 (reitan na kokoro) in Japanese. The pronunciation would roughly be something like "ray-tahn nah coco-row".
how to say "editor" in japanese
To say old Japanese illustrations in Japanese, you say "Mukashi no Nihon no irasuto".