Problem with plist.

THE .H FILE:

#import <UIKit/UIKit.h>


@interface SecondViewController : UIViewController {
	int mainInt;
	IBOutlet UILabel *timer;
	NSTimer *randomMain;
	//that was for the timer
	int currentQuestion;
}
@property (retain, nonatomic) IBOutlet UILabel *timer; //this is for the timer
@property (retain, nonatomic) IBOutlet UILabel *textQuestionTitle;
@property (retain, nonatomic) IBOutlet UIButton *buttonA;
@property (retain, nonatomic) IBOutlet UIButton *buttonB;
@property (retain, nonatomic) IBOutlet UIButton *buttonC;
@property (retain, nonatomic) IBOutlet UIButton *buttonD;
@property (retain, nonatomic) NSArray *questions;
@property (retain, nonatomic) NSString *answer;

-(void)showNextQuestion;
@end
================================================================

THE .M FILE:

#import "SecondViewController.h"

@implementation SecondViewController
@synthesize timer, buttonA, buttonB, buttonC, buttonD, textQuestionTitle;
@synthesize questions = questions_;
@synthesize answer = answer_;

-(void)randomMainVoid {
	mainInt -= 1;
	timer.text = [NSString stringWithFormat:@"Time left: %d", mainInt];
	if (mainInt == 0) {
		[randomMain invalidate];
		randomMain = nil;
	}
}


- (void)viewDidLoad {
    [super viewDidLoad];
	mainInt = 11;
	randomMain = [NSTimer scheduledTimerWithTimeInterval:(1.0/1.0) target:self 	selector:@selector(randomMainVoid) userInfo:nil repeats:YES];
	NSString *path = [[NSBundle mainBundle] pathForResource:@"Questions" ofType:@"plist"];
	NSDictionary *tempDict = [[NSDictionary alloc] initWithContentsOfFile:path];
	self.questions = [tempDict objectForKey:@"Root"];
	currentQuestion = -1;
	[self showNextQuestion];
}

-(void)showNextQuestion {
	currentQuestion ++;
	if (currentQuestion < [self.questions count]) {
		NSDictionary *nextQuestion = [self.questions objectAtIndex:currentQuestion];
		self.answer = [nextQuestion objectForKey:@"QuestionAnswer"];
		self.textQuestionTitle = [nextQuestion objectForKey:@"QuestionTitle"];
		NSString *varA = [nextQuestion objectForKey:@"A"];
		[buttonA setTitle: varA forState:UIControlStateNormal];
		NSString *varB = [nextQuestion objectForKey:@"B"];
		[buttonB setTitle: varB forState:UIControlStateNormal];
		NSString *varC = [nextQuestion objectForKey:@"C"];
		[buttonC setTitle: varC forState:UIControlStateNormal];
		NSString *varD = [nextQuestion objectForKey:@"D"];
		[buttonD setTitle: varD forState:UIControlStateNormal]; 
	}	
}

- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
        // Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}
- (void)dealloc {
    [super dealloc];
}

@end