Person? –yes.
Mortal? –yes.
Human? –sort-of.
Half-Elven? –no.
1st Age? –no.
3rd Age? –yes.
Nazgûl? –no.
Hobbit? –yes!
Male? –no.
Rosie Cotton –no.
Speaking part? –no (for good reason)!
Melilot Brandybuck? –no.
Esmeralda Brandybuck –no.
Deceased? –yes.
Elanor Gamgee? –no.

*cough* The two are not mutually exclusive.

I'm running out of ideas! Is it Gollum's beloved grandmother? :)
Eseralda could be Merry's mom, you are right. We don't know that for sure, though.

Person? –yes.
Mortal? –yes.
Human? –sort-of.
Half-Elven? –no.
1st Age? –no.
3rd Age? –yes.
Nazgûl? –no.
Hobbit? –yes!
Male? –no.
Rosie Cotton –no.
Speaking part? –no (for good reason)!
Melilot Brandybuck? –no.
Esmeralda Brandybuck? –no.
Deceased? –yes.
Elanor Gamgee? –no.
Gollum's grandmother? –no.

Well, we do, actually. Check the family tree. You'll find her as "Esmeralda Took" (maiden name).

I don't have the family tree in my translation. New fact for me!

It's a deceased female hobbit. Belladona Took, Bilbo's mom?

Or if it's not Belladonna, what about Primula Baggins née Brandybuck, Frodo's mom?

You've got it, Pitch!

Thanks, Nerwen!
I've got something; open fire.:)

person?

Person? - Yes.

mortal?

Mortal from the Third Age???

That's two questions at once.

Person? - Yes.
Mortal? - That's actually up to speculation. Most probably not.
...from the Third Age? - No. (Meaning neither mortal, nor from the Third Age.)
Hm, I suppose I could technically have taken it as a single question and answered negative if it was, say, an Elf from the Third Age... But I'm not so mean.;)

here I go again...
 

halfelven?

Person? - Yes.
Mortal? - No.*
...from the Third Age? - No.
Halfelven? - No.

*(Sorry if my earlier answer to this was misleading. If you take 'mortal' to mean Man and/or Hobbit, including hybrids like Halfelves, it's a clear No. If it just means 'liable to die some natural death', it's by the most common interpretation of this character still a No. Hope this clears things up a bit.)

Mortal could also mean dwarf, can't it?

Anyways, is it an Ent?

Person? - Yes.
Mortal? - No.
...from the Third Age? - No.
Halfelven? - No.
Is it an Ent? - No.

(And yes, in the second, wider sense a Dwarf would be mortal, too, if you're a pedant with words and their meanings like I am - hence my occasional difficulties in answering questions like that with a simple 'yes' or 'no'.:rolleyes::))

I don't blame you one bit, Pitch.
Was that person evil?

Person? - Yes.
Mortal? - No.
...from the Third Age? - No.
Halfelven? - No.
Is it an Ent? - No.
Was that person evil? - Unambiguously yes!

Just a shot in the dark - Mouth of Sauron?

Person? - Yes.
Mortal? - No.
...from the Third Age? - No.
Halfelven? - No.
Is it an Ent? - No.
Was that person evil? - Unambiguously yes!
Mouth of Sauron? - Nah. He was a) a Black Numenorean, i.e. a Man, and thus mortal, even if artificially long-lived; and b) from the Third Age.

was it by any chance a dragon?

Person? - Yes.
Mortal? - No.
...from the Third Age? - No.
Halfelven? - No.
Is it an Ent? - No.
Was that person evil? - Unambiguously yes!
Mouth of Sauron? - No.
Was it by any chance a dragon? - No.

I'm probably overcomplicating things and just going in circles around the answer, and then someone else will coe and casually announce it. That happens to me all the time! :mad:

Just to clarify: When you say that s/he is most likely immortal, but it is questionable, do you mean that s/he's not an ainu or elf? Because they're immortal for sure, aren't they?

*sigh*
Remember I'm supposed to answer only with Yes or No, and one question at a time? If only I'd stuck to that above...
What I meant is exactly what I said. Illustration: Suppose the person I was thinking of were Tom Bombadil, and you had asked me whether it's an Ainu, what would you have expected me to answer?

Female?

Person? - Yes.
Mortal? - No.
...from the Third Age? - No.
Halfelven? - No.
Is it an Ent? - No.
Was that person evil? - Unambiguously yes!
Mouth of Sauron? - No.
Was it by any chance a dragon? - No.
Female? - Yes!

Ungoliant?

Person? - Yes.
Mortal? - No.
...from the Third Age? - No.
Halfelven? - No.
Is it an Ent? - No.
Was that person evil? - Unambiguously yes!
Mouth of Sauron? - No.
Was it by any chance a dragon? - No.
Female? - Yes!
Ungoliant? - Sorry, no. (But I see you got my meaning!:))

Thuringwethil?

You've got it, Nerwen - Thuringwethil it is! Take over, please.

(Explanation for Galadriel55 about the mortality question: Most sources I've consulted seem to assume Thuringwethil was some sort of corrupted Maia, and as such, she would of course be immortal; but Tolkien himself never really tells us what kind of being she was, only that she acted as Sauron's messenger and took the form of a vampire bat, so it's at least conceivable she was some other creature - maybe a real bat corrupted and enhanced by sorcery, or something like Beorn's dark cousin six millennia removed;). Sorry for the confusion!)

Nerwen, you've got here just before I could! I thought of Thuringwethil yesterday, but I didn't have access to the computer until now. Ah well.
Person?

Yes.

Evil?

lived in 1st age?

Evil? –No.
First Age? –No.

mortal?

Yes.

Alive during the Second Age?

No.