Here is a set of basic questions producing integer or string outputs. Answer them and format the result precisely with the JSON instructions provided:

Question 0 (Question id: q_VwyFE):
Determine the value of k that satisfies: 30*k + 45 = 165 Respond with an integer.

Question 1 (Question id: q_5qWy):
Calculate 6 / 3.

Question 2 (Question id: q_4Lew):
Calculate ( 3 * 9 ) - -9.



Return a JSON with each question id as a key.

For every question id, supply an object whose 'answer' field stores the solution.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
For string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_VwyFE": {"answer": 4, "additional_answer_info": {"half_answer": 2, "double_answer": 8}}, "q_5qWy": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}, "q_4Lew": {"answer": 36, "additional_answer_info": {"half_answer": 18, "double_answer": 72}}}}