Does is the third person simple present of the verb to do. This means that the only objects of does are: he, she, it. it is both a verb whose meaning is "to make" and an auxiliary verb. When it's an auxiliary verb, it's used to form questions and negative sentences. For instance: "Does he need anything? No, he doesn't need anything". When it's used as a verb it means to make.
The verb to do can be used with both meanings in the same sentences. For instance: "What does she need me to do?".
At the beginning of this example, "does" is an auxiliary to form the question, while the second use "to do" is a synonym of to make.
Leggere di piú