geoWII (geo - Where Is It?) is a service where you can provide geocachers with the means of getting the hints for a cache that they can't solve otherwise.
It also doubles as a classic style geo-checker.
It only takes a few moments to create a geoWII hint for your cache - just fill out a simple form and you're ready.
To use geoWII to check results or get additional hints, look for the geoWII banner on the cache listing page.
If you do not see, consider inquiring with the cache owner if he would like to create one.