Jira: How to Find Day Count

currentUser() AND status = "On Hold" AND updated <= -5d

Created in the last 5 days would be:

created >= -5d

Resolved in the last 7 days would be:

resolved >= -7d

OR

resolved >= -1w

Report Aging more than 10 days

createdDate >= -10d

Ref: 
http://stackoverflow.com/questions/8362323/how-do-i-query-jira-to-search-for-all-issues-that-have-been-resolved-within-a-le
https://confluence.atlassian.com/jira064/advanced-searching-720416661.html
https://answers.atlassian.com/questions/42077/jira-4.4-searchfilter-how-to-find-issues-resolved-in-last-seven-days
https://answers.atlassian.com/questions/59922/creating-filter-on-tickets-by-age