Question

who is dr.Armstrong? (doctor Armstrong)

Answer 1

Answer:

If the Dr. Armstrong here is Neil Armstrong then-

He is the first one to walk on moon.

Answer 2

Answer:

Edward George Armstrong is one of ten people summoned to Indian Island by Lawrence Wargrave in Agatha Christie's novel 'And Then There Were None,' who have committed murder in a way that the law cannot prove or punish them for.