This'll be my first time on the Truth side of GD...
1 Would you allow yourself to be tied up and spanked or whipped?
Is there anyone on this site who wouldn't?
2 Would you allow yourself to be tied up naked allowing others to do as they please to you?
Of course 
3 Denial: would you lock yourself in a chastity device having posted the key to yourself or a master/mistress/friend?
Only to a domme I really trust.
4 Would you go out shopping or to work cross dressing in sexy clothes?
Maybe in a group of others crossdressing too. And it would have to be out of town, but yeah sounds fun 
5 Girls: Would you go out in a miniskirt, transparent, low top and no underwear? You are to bend down frequently.
Wow sexist... I'd wear those things and go out. 
6 Would you piss yourself in public.
Hm... not in regular clothes no. Not that I can think of any clothes I would pee myself in haha... but it's not a total no, I guess?
7 Would you do watersports (golden shower, drinking pee...)?
Hell no
8 Girls: Would you do clit and tit torture?
If I were a girl I'd be all over that shit lol
9 Would you be totally submissive (slave) for a week? Add details.
Hell yeah?
10 Would you drive naked?
At night, definitely.
11 Would you get naked in a public place? (and would it include somewhere that nudity is not allowed?)
Yes, as long as it's hidden.
12 Would you allow your sexy, degrading or nude photos to be uploaded to the internet?
No
13 Would you go on public cam doing sexy, degrading or naked things for all to see?
As long as it's not recorded, yes.
14 Would you accept humiliation like body writing, shaving, or anything else (say what)?
Definitely
15 Would you go outside or for a walk in whatever you were told (including naked)?
At night in a town I'd never come back to yeah.
16 Would you do the button and hole dare?: Buttons - cut off a button whenever you see someone in red and remove the garment when all the buttons are gone; Holes (for garments without buttons). For a top cut a hole at each nipple and make it bigger for each person you see. For bottoms cut 3 inches off the leg length for each person. Underwear not allowed.
I'd give this a very situational yes. I would be down to do this at a bdsm party or something (if that's even a thing), but not in public, no.
17 Would you get naked, have a suite of "clothes" painted on you with body paint and go out as if you were fully dressed?
Don't know if you could hide a penis with paint. If it could be hidden and the clothes looked real enough... maybe.
18 Would you allow anything to be inserted in you anus?
What is the limit? Yes. Size and safety would be the obvious limits.
19 Would you be the stripper at a hen party or stag party, knowing they might want sex with you?
Not going to google what either of those are, but maybe?
20 Would you suck the cock or the pussy of strangers blindfolded?
I don't think so, no... too many variables. (STDs, age, etc...)