Question: It uses a unique technology for human answer detection hence opening the possibilities for interaction with the people on the other end of the line
Please fix the punctuation.
Fixed: [It uses a unique technology for human answer detection, hence opening the possibilities for interaction with the people on the other end of the line.]

Question: Some IGP file extension formats can be opened in binary format only
Please fix the punctuation.
Fixed: [* Some IGP file extension formats can be opened in binary format only.]

Question: After Aleksandrovs death in November 1982 his colleagues from the Department of Higher Geometry and Topology in which he had held the chair sent a letter to Moscow Universitys rector A A Logunov proposing that one of Aleksandrovs former students should become Head of the Department to preserve Aleksandrovs scientific school
Please fix the punctuation.
Fixed: [After Aleksandrov's death in November 1982, his colleagues from the Department of Higher Geometry and Topology, in which he had held the chair, sent a letter to Moscow University's rector A A Logunov proposing that one of Aleksandrov's former students should become Head of the Department, to preserve Aleksandrov's scientific school.]

Question: Video call your contacts
Please fix the punctuation.
Fixed:
[Video call your contacts.]