Illegal, offensive and just plain weird interview questions

Chris Russell at Secrets of the Job Hunt has posted a list of illegal, bizarre and offensive questions asked in job interviews. Here are some lowlights:

Illegal:
"Why are you not yet married?"

Offensive:
"Would you be willing to stay overnight with a client if they request it?"

Bizarre
"What would you do if I gave you an elephant?"

Check out more of these questions, and also some odd comments made in interviews by candidates, here.

Candidates have more power in interviews than they realize. Any questions that probe into your personal life do not have to be answered - although the response needs to be handled tactfully.

There are interviewers that ask on offbeat or strange question simply to see how a candidate reacts - the answer doesn't matter but you need to show how you can think on your feet.

What's the strangest question you've been asked in an interview?