You can't only the admins can. The one of the mods can hide them but not delete it. If you want a question deleted, just contact the admis and ask the to delete it. I messed up a question before and kindly asked the admins to remove it and they did. by the way your question should be in the G@G section not the dating section.
G@Gers cannot edit or delete their questions, opinions, or comments after posting them. We do not remove posts per user request, we want helpful questions and opinions on the site at all times, for everyone to be inspired by. If the post doesn't violate any posting guidelines, we will not remove it. We always encourage everyone to carefully consider what they post before hitting Submit to avoid "post regret" (^_^)