for(int i=1;i<6;i++)
            {
                questButton=[UIButton new];
                for (int j=1; j<4; j++)
                {
                    [questButton setFrame:CGRectMake(x, y, 30, 30)];
                    [questButton setTitle:[NSString stringWithFormat:@"Q%d",i] forState:UIControlStateNormal];
                    [questButton setTag:i];

                    [self.questionBtnArray addObject:questButton];

                    questButton.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.4f];
                    [questButton release];
                    x=x+40;
                }
                NSLog(@" button frame for %d button is :- %@",i,NSStringFromCGRect(questButton.frame));
                y=y+40;
            }