KBowl solution

String[] questions = new String[60];
        int j = 0;
        int k = 0;
        for(int i = 0; i < 20;i++){
            for(; j < (k+3); j++){
                Random r = new Random();
                int rI = r.nextInt();
                while(rI%2 != 0){
                    rI++;
                }
                questions[j] = arrays[i][rI];
            }
            k = j;
        }
        return questions;
    }