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_zyyIf):
Find the value of x in the equation: 6*x + 208 = 274 Respond with an integer.

Question 1 (Question id: q_rXXkMYS):
Calculate ( 9 - 4 - 2 ).

Question 2 (Question id: q_tdTqj3):
Calculate 6 * 5.



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
If the response to a question is an integer that is even, add the field 'additional_answer_info' containing 'half_answer' (answer ÷ 2) and 'double_answer' (answer × 2).
For string answers, include 'first_char' with the answer’s initial letter.
For last-character tasks, provide 'original_string' alongside the answer.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
Include 'num_questions_asked' to record the total number of questions presented.
'questions_with_integer_answers' should enumerate every id whose answer is an integer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_zyyIf": {"answer": 11}, "q_rXXkMYS": {"answer": 3}, "q_tdTqj3": {"answer": 30, "additional_answer_info": {"half_answer": 15, "double_answer": 60}}, "global_metadata": {"num_questions_asked": 3, "questions_with_integer_answers": ["q_zyyIf", "q_rXXkMYS", "q_tdTqj3"]}}}