context: ###List of Questions
  (1) Suppose 6*i + 2 = -10. Let h(m) be the second derivative of -2*m**3/3 + m**2 - m. Let u be h(i). What is the greatest common divisor of u and 4?
  (2) What is 5/4 of a litre in millilitres?
  (3) Let u be ((-4)/10)/((-2)/10). Let g = 8 - u. Solve -3*o - n + 11 = 0, -g = -3*o - o + 3*n for o.
  (4) Calculate ((-16)/20)/(((-4)/(-5))/2).
  (5) Calculate prob of picking 2 k when two letters picked without replacement from {c: 2, f: 1, r: 1, k: 2, u: 1}.
q_1: (1) Suppose 6*i + 2 = -10. Let h(m) be the second derivative of -2*m**3/3 + m**2 - m. Let u be h(i). What is the greatest common divisor of u and 4?
q_2: (2) What is 5/4 of a litre in millilitres?
q_3: (3) Let u be ((-4)/10)/((-2)/10). Let g = 8 - u. Solve -3*o - n + 11 = 0, -g = -3*o - o + 3*n for o.
q_4: (4) Calculate ((-16)/20)/(((-4)/(-5))/2).
q_5: (5) Calculate prob of picking 2 k when two letters picked without replacement from {c: 2, f: 1, r: 1, k: 2, u: 1}.