Zimbabwe’s ex-leader Robert Mugabe remains hospitalised in Singapore where he has been receiving medical care for four months, his successor President Emmerson Mnangagwa said on Monday.Mnangagwa said in a statement that the 95-year-old Mugabe had been receiving medical care for an undisclosed ailment, and was responding well to treatment.“Founding president and founding father of our nation (comrade) Robert Mugabe remains detained at a hospital in Singapore where he is receiving medical…