If you have that data appearing in your table of contents then you have the styles of those particular graphics, text or whatever set to one of the heading styles of the TOC (commonly Heading 1, Heading 2 or Heading 3).

The "quick fix" is to set those styles to something other than the Heading 1, 2 or 3. For example, if you are using Body Text for the textual content of your document, use that same setting for the text that appears in the TOC. For the figures or other data do the same as other figures of your document. Then update your TOC and they should disappear.

The "real fix" though is to understand and use the styles throughout your document. There are many links out there (web) that can help you (I just don't have them handy from this CPU or I would provide them).

Hope this helps...