Just [out of, from] curiosity

[Anonymous]

Hi,
Please check these sentences and correct them.
1. Just [out of, from] curiosity, I decided to meet her.
2. Just [out of, from] curiosity, why do you need a copy of that book?
3. Just [out of, from] curiosity, what computer do you use?
4. Just [out of, from] curiosity, what's the chances/possibility of you being relocated to New York?
5. Just [out of, from] curiosity, why do you want marry her?
6. Just [out of, from] curiosity, do you know that/if she is married?
7. Just [out of, from] curiosity, why don't you try [changing works/jobs, transferring to a higher-paying work/job/office]?
Thanks in advance.

[Rusty]

1. Just [out of, from] curiosity, I decided to meet her.
2. Just [out of, from] curiosity, why do you need a copy of that book?
3. Just [out of, from] curiosity, what computer do you use?
4. Just [out of, from] curiosity, what's the chances/possibility of you being relocated to New York?
5. Just [out of, from] curiosity, why do you want marry her?
6. Just [out of, from] curiosity, do you know that/if she is married?
7. Just [out of, from] curiosity, why don't you try [changing work <strike>s</strike> /jobs, transferring to a higher-paying work/job/office]?(
(no "a") higher-paying work/a higher-paying job/office).
("Just out of curiosity" is more common than "from curiosity" in the type of sentence you have given).