1 - I've gone 12 years older and 9 or 10 years younger. I'd probably push that out a few years older. Not sure younger at the moment. At least at first blush - if someone knocked me off my feet, I wouldn't be too concerned with the age.

2 - Not sure it has changed. I guess as you get a little older, you consider a bit more to the younger side without fear of procescution.

3 - male

I usually tend to date at about my age or younger - pretty sure it isn't intentional, just happenstance.