There isn't any way to answer a question posed with such generality. But I'm going to take a crack at assuaging the concerns you seem to be...

The advice you got from an attorney sounds like you were being told about TRADEMARK rights, which must be associated with a product or service. ...

In general, yes. Might there be a unique circumstance where your drawing infringes someone's rights, yes. but that would be extremely unusual.

You would be risking a trademark enforcement suit from the company that makes Legos. They are likely to be concerned that your use of the term...

How about: "I'm having what SHE's having?" from "When Harry Met Sally?" In general, copyright doesn't provide exclusive rights to short...

Gee, are you game for touching a Third Rail? Major sports teams are about as zealous as Disney in enforcing their exclusive rights in...

There isn't any way to answer this question without the underlying facts. Your best strategy is to engage an intellectual property attorney and...

Your question is unclear. You seem to be saying that you no longer work for unnamed employer that seems associated with the "insert color" you...

Yes, but it depends. If your image was "derived" from the cooyrighted image and so would be deemed to be a "derivative work," then no, it would...

In general, yes. But in the unlikely event that Walmart was duped by their source and sold you goods bearing a counterfeit trademark of a...