Deloitte Business Technology Analyst interview questions

LCM of 2 numbers program using pseudocode - recursive and iterative approach, what are the edge case we need to consider. Self - Introduction 2 jugs are given 3L and 5L, how would you fill exactly 4L of water using these 2 jugs 9 balls all of which look and feel identical are given to you along with a balancing scale, 8 of these balls are identical in weight, one ball differs in weight slightly, using the balancing scale just twice find out which is the different ball