If you have a paper that you think would be a good fit for multiple conferences, then it is possible to submit the same paper to more than one conference. However, there are a few things to keep in mind before doing so. First, most conferences have strict guidelines about what types of papers they will accept. Make sure that your paper falls within the parameters of each conference you are considering submitting to.
Secondly, many conferences have strict policies against Duplicate Submission, which is defined as submitting the same paper to more than one conference during the same submission cycle. Be sure to check each conference's policy before submitting your paper. Finally, if you do submit your paper to multiple conferences, be sure to clearly indicate on each submission which conference it is intended for. This will help the review process go more smoothly and avoid any confusion about where your paper should ultimately be published.