context: ###List of Questions
  (1) Convert 0.930934 milligrams to kilograms.
  (2) Calculate 91*-0.08.
  (3) Three letters picked without replacement from heeehaoeeoooehaaehee. Give prob of sequence ehh.
  (4) What is the next term in -16, -181, -632, -1513, -2968, -5141?
  (5) Let z(s) be the third derivative of 0*s**3 + 0*s**4 + 2/15*s**5 + s**2 + 0*s + 0. What is the units digit of z(-1)?
q_1: (1) Convert 0.930934 milligrams to kilograms.
q_2: (2) Calculate 91*-0.08.
q_3: (3) Three letters picked without replacement from heeehaoeeoooehaaehee. Give prob of sequence ehh.
q_4: (4) What is the next term in -16, -181, -632, -1513, -2968, -5141?
q_5: (5) Let z(s) be the third derivative of 0*s**3 + 0*s**4 + 2/15*s**5 + s**2 + 0*s + 0. What is the units digit of z(-1)?