Hi, are the following two sentences grammatically correct or not?<br/><br/>1. Who does not like who? (In response to e.g. someone mumbling this person does not like that person).<br/><br/>Should it be whom at the end?<br/><br/>2. More importantly did Tom manage to defeat John by using his powerful serve, which is world famous, to overpower his opponent. <br/><br/>Is this an independent clause or should it be without "did", just "Tom managed".