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_T7Yzt):
Find the value of w in the equation: 16*w - 15 = 81 Respond with an integer.

Question 1 (Question id: q_EhFBsukz):
Determine the value of v that satisfies: 28*v = 420 Respond with an integer.

Question 2 (Question id: q_BRIIWiTr):
Find the value of d in the equation: 50 - 12*d = -130 Respond with an integer.

Question 3 (Question id: q_Ku8g4):
Calculate ( 0 * -6 ).

Question 4 (Question id: q_XftL):
Your job is to return the last character of a string as a string. For example, the last char of "hello" is "o". Return the last character of the following string: "fewer"

Question 5 (Question id: q_9U51Hd):
Calculate -1 - -8 + -7.

Question 6 (Question id: q_YN2nzfP):
Calculate 5 - -2 * 2.

Question 7 (Question id: q_nXVo):
Calculate 5 * 1.

Question 8 (Question id: q_1bCvwE):
Solve for x: 20*x + 1 = 301 Respond with an integer.

Question 9 (Question id: q_wXkf):
Calculate ( -1 - ( -3 / 3 ) ).



Return a JSON with each question id as a key.

The value for each key should be an object that contains the answer in the field 'answer'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
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 last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_T7Yzt": {"answer": 6, "answer_type": "integer", "additional_answer_info": {"half_answer": 3, "double_answer": 12}}, "q_EhFBsukz": {"answer": 15, "answer_type": "integer"}, "q_BRIIWiTr": {"answer": 15, "answer_type": "integer"}, "q_Ku8g4": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}, "q_XftL": {"answer": "r", "answer_type": "string", "original_string": "fewer"}, "q_9U51Hd": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}, "q_YN2nzfP": {"answer": 9, "answer_type": "integer"}, "q_nXVo": {"answer": 5, "answer_type": "integer"}, "q_1bCvwE": {"answer": 15, "answer_type": "integer"}, "q_wXkf": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}}}