Where was the Poison?

1 Hypnosis Killer 2 Identity Riddle 3 Shoot One to Kill the Other 4 The Mystery of a Haunted Hound 5 The Mystery of Poison 6 The Mysterious Aghori 7 Betrayal and the Killing 8 Drugs Kill 9 The Invisible Killer 10 Where was the Poison? 11 Episode 11 12 Episode 12 13 Episode 13 14 Episode 14 15 Episode 15 16 Episode 16 17 Episode 17 18 Episode 18 19 Episode 19 20 Episode 20 21 Episode 21 22 Episode 22 23 Episode 23 24 Episode 24 25 Episode 25 26 Episode 26 27 Episode 27 28 Episode 28 29 Episode 29 30 Episode 30 31 Episode 31 32 Episode 32 33 Episode 33 34 Episode 34 35 Episode 35 36 Episode 36 37 Episode 37 38 Episode 38 39 Episode 39 40 Episode 40 41 Episode 41 42 Episode 42 43 Episode 43 44 Episode 44 45 Episode 45 46 Episode 46 47 Episode 47 48 Episode 48 49 Episode 49 50 Episode 50 51 Episode 51 52 Episode 52 53 Episode 53 54 Episode 54 55 Episode 55 56 Episode 56 57 Episode 57 58 Episode 58 59 Episode 59 60 Episode 60