Latest IBM Aptitude Question SOLUTION: Q. What is the next number of the following series. 1) 1,3,3,2,8,10,3,4,12,? 2) 7776, 625, 64,9,? 3) 7,-14,-4,15,-30,-20,-21,? 4) 7,-35, -34, -3, 15, 16, ? 5) 4,2,4,8,6,8,,16