context: ###List of Questions
  (1) Calculate (-66)/(-7) - ((-460)/70 + 7).
  (2) How many kilograms are there in 1/20 of a tonne?
  (3) What is next in -8004, -16010, -24016?
  (4) Let u = 4 + -5. Let w(j) = 6*j**2 + j. Let b be w(u). Suppose 0 = 6*v - v, -b*o - 4*v + 65 = 0. What is the highest common divisor of 39 and o?
  (5) Four letters picked without replacement from {u: 3, y: 3, q: 5}. What is prob of sequence qquq?
q_1: (1) Calculate (-66)/(-7) - ((-460)/70 + 7).
q_2: (2) How many kilograms are there in 1/20 of a tonne?
q_3: (3) What is next in -8004, -16010, -24016?
q_4: (4) Let u = 4 + -5. Let w(j) = 6*j**2 + j. Let b be w(u). Suppose 0 = 6*v - v, -b*o - 4*v + 65 = 0. What is the highest common divisor of 39 and o?
q_5: (5) Four letters picked without replacement from {u: 3, y: 3, q: 5}. What is prob of sequence qquq?