context: ###List of Questions
  (1) Convert 8.525023ml to litres.
  (2) Three letters picked without replacement from {s: 9, k: 5}. What is prob of picking 3 k?
  (3) What is the square root of 1682 to the nearest integer?
  (4) What is next in -15, -21, -25, -27, -27?
  (5) Let g = 6 - 6. Let b = 3 + g. Suppose -w - b = -21. What is the tens digit of w?
q_1: (1) Convert 8.525023ml to litres.
q_2: (2) Three letters picked without replacement from {s: 9, k: 5}. What is prob of picking 3 k?
q_3: (3) What is the square root of 1682 to the nearest integer?
q_4: (4) What is next in -15, -21, -25, -27, -27?
q_5: (5) Let g = 6 - 6. Let b = 3 + g. Suppose -w - b = -21. What is the tens digit of w?