'Te quiero' means 'I love you'. Querer = to want (a thing) or to love (a person); I can't think of any instance where I'd translate it as 'to like', which is why the hints are problematic. To talk about liking a thing, use the verb gustar. When talking about liking people, there are several different ways to say it, none of which use querer or gustar. One example is 'caer bien': Me caes bien = I like you, Él me cae bien = I like him. Hope that helps some!