* Are you intelligent (though did not necessarily have top grades).
Yes. tested as gifted in elementary school...barely graduated high school. Always told I never applied myself.
* Are you very creative and enjoy making things.
Yes. Photographic artist
* Do you always need to know WHY (especially why you are being asked to do something).
Yes.
* Do you have disgust and perhaps loathing for the inanity of much of the required work in school, the repetition.
Yes. Hated times tables in school
* Were you rebellious in school, refusing to do homework, rejecting authority of teachers OR seriously wanted to rebel, but didn't DARE, usually due to parental pressure.
OMG YES.
* have you experienced early existential depression and feelings of helplessness. These may have ranged from sadness to utter despair. Suicidal feelings while still in high school or younger are not uncommon in the Indigo Adult.
I have always off. I remember wanting to kill myself in middle school. I was 'offically' diagnosed with depression after my 2nd child was born. 6 years later ended up in the looney bin. I still self harm. 
* Do you have difficulty in service-oriented jobs - resistance to authority and caste system of employment.
Yes. I love helping people, but not serving them
* Do you prefer cooperative efforts or leadership position or solo if expertise is valued.
Not sure on this one.
* Have you deep empathy for others, yet an intolerance of stupidity.
Yep. Just ask my hubby
* Are you extremely emotionally sensitive including crying at the drop of a hat (no shielding) - to no expression of emotion (full shielding).
Yep. I can flick a switch. I cry in the movie "cars" and yet others say I am aloof.
* Do you have trouble with RAGE.
Unfortunately I am the recipient of my own rage.
* Do you have trouble with most systems (either emotionally, mentally, or physically)- political, educational, medical, law.
On one level or another yes
* Do you feel alienated from politics - feeling your voice won't count and that the outcome really doesn't matter anyway.
dont we all?
* Do you feel frustration with or rejection of the traditional American dream - 9-5 career, marriage, 2.5 children, house with white picket fence, etc.
YES!
* Do you feel anger at rights being taken away, fear and/or fury at "Big Brother watching you."
Yes
* Do you feel a need like a burning desire to do something to change and improve the world. But feel stymied what to do.
YES
* Did you have psychic or spiritual interest fairly young - in or before teen years.
Yes.
* Have you had few if any Indigo role models.
Hmm...YES!
* Do you have strong intuition.
Yes
* Do you have random behavior pattern or mind style - (symptoms of Attention Deficit Disorder), may have trouble focusing on a task unless of OWN choosing, may jump around in conversations.
YES! Ironically when I was diagnosed with depression, I had actually gone in to be tested for ADD as an adult. I can't shop very easily, I get overwhelmed...things like that
* Have you had psychic experiences, such as premonitions, seeing angels or ghosts, hearing voices, intuitive thoughts coming through etc
Yes.
* Are you sexually expressive and inventive OR do you reject sexuality in boredom. May explore alternate types of sexuality.
Yes, although not as expressive as in the past.
* Do you seek meaning to their life and understanding about the world you may seek this through religion, spiritual groups and books, self-help groups or books, or individually.
YES!
All my life I have never felt like I fit in with anyone or anything. I was made to hide my emotions. I was way to sensitive for my parents. They didnt know how to handle it. My favorite thing about summer was swimming. I could sit at the bottom of the pool, underwater, and cry and no one knew. I have always hated this feeling. I would like to think I have some purpose here. I just dont seem to know what.
Done rambling.
Namaste