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6:06 PM
There are some meta-tags, such as , which should not be standalone - they should only be used in combination with other tags.
It's better to keep eye on this as new questions appear, but perhaps it is also useful to retag older questions correctly.
Older questions tagged only homework can be found using this.
It is useful to know that data.SE contains the data which might be up to 2 months old, IIRC.
(The database is not updated very frequently.)
Anyway, here are the questions that were found using that query:
 

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