<apex:page standardController="Lead">
    <apex:pageBlock >
    You're looking at some related lists for {!Lead.name}:
    </apex:pageBlock>

    <apex:relatedList subject="{!Lead}" list="NotesAndAttachments" />

    <apex:relatedList list="Contacts">
        <apex:facet name="header">Titles can be overriden with facets</apex:facet>
    </apex:relatedList>

    <apex:relatedList list="Cases" title="Or you can keep the image, but change the text" />
</apex:page>