Feels like an opportunity to write for some Dead Characters™ so I'll pick out a couple I like.
(some are also answered by characters that are very much not dead.)

[hr][b]- What do you like to do for fun?[/b]
[url=https://www.roleplayerguild.com/posts/4498710](Tamatsu)[/url]

[color=#ffd9b3]"I... like sitting in parks. The quiet is nice.
...
I just...
I just really like it."[/color]

[hr][b]- If you could change one thing about yourself, what would it be?[/b]
[url=https://www.roleplayerguild.com/posts/4327380](Yasu)[/url]

[color=AFFFD7]"M-my stuttering! I need t-to be more assertive..." 
[sub][sub]"Otherwise, he won't notice me at all..."[/sub][/sub][/color]

[hr][b]- How much time to do have left to live?[/b]
[url=https://www.roleplayerguild.com/posts/4498710](Tamatsu)[/url]

[color=#ffd9b3]"...L...ive?
I...
...I'm... already... I...
..."[/color]
[color=fdc68a]"...
Such a frightening question to ask her. I think I'm more suited to answering this. After all...
I'll live [b]forever[/b]."[/color]

[hr][b]- Who's had the biggest influence on your life?[/b]
[url=https://www.roleplayerguild.com/posts/5232475](Rui and Lumia)[/url]

[color=#ffbae8]"Who? ...Well, maybe two people?
I have a little brother- Sora, right? We've always been together, and I'd do anything for him. If anyone shaped me who I was, it's him.
But... those memories were stolen from me. And only Lumia can help me get them back.
And... I see her as a friend, too. She's turned my life upside-down, but I don't regret that anymore. I want to fight alongside her... I [i]trust[/i] her."[/color]
[color=#FFF83B]"Nee-... chan...
...
I'm sorry."[/color]
[color=#ffbae8]"It's alright- we'll figure it out!"[/color]
[color=#FFF83B]"Right!"[/color]

[hr][b]- What gives you purpose in life? What drives you?[/b]
[url=https://www.roleplayerguild.com/posts/5232475](Lumia)[/url]

[color=#FFF83B]"...It's dumb, right? I had this big dream that I thought I'd give anything for- even my life.
But now... I'm trapped and lonely inside of a card, because I was selfish and wished for it at the cost of others' memories.
...I need to get back to my body. No matter what. A-and I'll set things right... somehow...
...I'm sorry, Nee-chan. I'm sorry I need to lie to you to make that come true."[/color]

[hr][b]- What is your favorite animal?[/b]
[url=https://www.roleplayerguild.com/posts/5346448](Nico)[/url]
[color=FE93EC]"Hedgehogs!"[/color]

[hr][b]- Who do you consider closest to you?[/b]
[url=https://www.roleplayerguild.com/posts/5192381](Chie)[/url]

"Well...
If you had asked me this earlier, I'd say my dad. And he still is, even if I can't see him much anymore.
But... Selma, Rivka, Crystal and Aoife... I care about them too.
We're team Kheper. I'll do anything for them."

[hr][b]- There is no question. Merely differing paths to a preconceived answer.[/b]
[url=https://www.roleplayerguild.com/posts/4730373](Momoe)[/url]

"Bullshit."

[hr][b]- What power do you desire the most?"[/b]
[url=https://www.roleplayerguild.com/posts/3416049](Serah)[/url]

[color=00aeef]"Cuddles and rainbows and sparkles- all the time!
...
Aha, I really can't keep this up, can I?
The true answer is the power to protect people. I... I already saw so many of my friends die.
...I already... nearly killed one of them myself..."[/color]

[hr][b]- What advice would you have for your younger self?[/b]
[url=https://www.roleplayerguild.com/posts/5232481](Masked Boy/Nanashi)[/url]

[color=#038a34]"I don't remember him. I don't even remember his name.
But as I am now...
'Gaze up at the sky and remember. Hold tight to those memories.'
'And when the day comes you forget them...'
'Fight and struggle until you get them back.'"[/color][hr]

[b]If it was to protect something, someone or the world- for any reason whatsoever- would you suffer any punishment? Would you sacrifice yourself to save someone or something else?[/b]