What's wrong with this question?

This was posted to one of the R/BS lists:

What stop do I get off the train to get to the embassy in Tel Aviv?
Thank you,

Ignoring any potential grammar issues, what's wrong with that question?

What's wrong with it is similar to what's wrong with the following question:

Where was my cousin this morning?

The funny thing is that the person who asked the above question probably got the correct answer without either the asker or the answerer realising that the question wasn't definitive in the first place.

Grrrrr.