A way to get around those (really lame) interview questions is to blow it off and then move the conversation to something else, i.e. "Taking each exam part once is one too many!"
\n
And illegal questions - you can always give vague, silly answers to defuse and steer the conversation elsewhere, i.e. "Oh, I graduated high school last year, I think you were in the class the year before!" or "I'm adopted, so I'm clueless about my true ethnic origins or where my name came from!" or "I think my pet rock is sometimes eligible for childcare credit!"
\n
It's generally illegal to ask about age and ethnicity, but small shops ask them b/c they can get away with it. Watch out for similar questions that indirectly ask things about yourself without directly asking, i.e.
\nWhat are the origins of your first/last name?
\nHow do you spend your weekends?
\nWhere are you living and do you like living in an apartment? For a house, who handles the house maintenance? How many room are there? How many roommates do you have? (Trying to figure out if you are married but not wearing a ring, if you have kids, etc)
\n
These are very natural conversation questions when you meet someone new, but how you answer these in an interview gives the interviewers clues. You can be polite, but you don't have to give too much information - you can give fairly broad answers.\n
\n
I really can't pass again!