SQL averaging over column values for an id in the table, grouped by values in the same column for a different id in the table - sqlite

Question

I have searched SO but can't find a case that matches mine. This is because the same column in my table needs to be used for Averaging and Grouping By, however the catch is that the id is different when implementing each function. Let me explain:
This is my 'Answers' table:
Now Question with ID 1 is "What is your age" and Question ID 2 is "What is your gender". I found the top 7 genders, these are : 'Male', 'Female', 'male', 'female', '-1', 'Nonbinary', 'non-binary'
AnswerText contains the answers for each question. I want to get the Average age for each gender category in the list.
I have done this:
SELECT AVG(AnswerText), Gender
FROM
(
SELECT AnswerText as Gender
FROM Answer
WHERE Answer.QuestionID = 2
AND Gender IN ('Male', 'Female', 'male', 'female', '-1', 'Nonbinary', 'non-
binary')
)
WHERE Answer.QuestionID = 1
GROUP BY Gender
This is throwing error 'no such column: AnswerText'
I am using SQLlite, how do I achieve this? I can provide the table if required
Any guidance is appreciated. Thanks

Answer 1

SELECT AVG(AnswerText), Gender
FROM
(
SELECT AnswerText as Gender //Try to remove as Gender, the alias is not necesary
FROM Answer
WHERE Answer.QuestionID = 2
AND Gender IN ('Male', 'Female', 'male', 'female', '-1', 'Nonbinary', 'non-
binary') // remove the AND statement. I think is redundant
)
WHERE Answer.QuestionID = 1
GROUP BY Gender // This should group by all different genders or you can group then by later.
This is just based from a conceptual point of view. I don't have the software available to help more.