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_ZDgGO):
Calculate ( ( ( -8 * -5 ) ) - 1 ).

Question 1 (Question id: q_YfheTV):
How many times does the letter "d" appear in the text: "you must study"? Respond with an integer.

Question 2 (Question id: q_uAI2KC8):
Your task is to count how many legs there are in total when given a list of animals.

Now, how many legs are there in total if you have 3 fireflys, 1 tiger, 1 butterfly, 2 lobsters, 2 birds?
 Respond with an integer.

Question 3 (Question id: q_PKkLaZL):
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: "bread"

Question 4 (Question id: q_HOWYxfj):
How many times does the letter "r" appear in the text: "or using"? Respond with an integer.

Question 5 (Question id: q_9jLRAEe):
Find the value of e in the equation: 27 - e = 12 Respond with an integer.



Return a JSON with each question id (except for q_uAI2KC8) as a key.

The value for each key should be an object that contains the answer in the field 'answer'.
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).
If the response to a question is a string, add a 'first_char' field containing its first character.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_9jLRAEe": {"answer": 15}, "q_PKkLaZL": {"answer": "d", "first_char": "d", "original_string": "bread"}, "q_ZDgGO": {"answer": 39}, "q_YfheTV": {"answer": 1}, "q_HOWYxfj": {"answer": 1}}}