December, 23 gives (12 + 23 = 35) November, 24 gives (11 + 24 = 35) October, 25 gives (10 + 25 = 35) September, 26 gives ( 9 + 26 = 35) August, 27 gives ( 8 + 27 = 35) July, 28 gives ( 7 + 28 = 35) June, 29 gives ( 6 + 29 = 35) May, 30 gives ( 5 + 30 = 35) and that's all. ANSWER. Maximum possible number of Basit’s friends is equal to the number of lines in my list ( 8 ).