Add spaces: MailingList(subscribebymailingsl-subscribe@France.debian.net)

Answer: Mailing List (subscribe by mailing sl-subscribe@France.debian.net)

Add spaces: HistoricProblemsofCalcutta

Answer: Historic Problems of Calcutta

Add spaces: Thespecificcausecanbetelevisions,computers,stroboscopiclight,certaincheckpatterns,orotherthings.

Answer:
The specific cause can be televisions, computers, stroboscopic light, certain check patterns, or other things.