This week there are three new Leaderboard challenges in the game. They are -
1. Milk strawberry fest.
2. Grant wishes.
3. Birthday cake fest.
4. Halloween celebration.
These challenges are available only for a week and farmers can play it with their neighbors for seven days from the time it arrives in Farmville. Once it gets expired new Leaderboard challenges will be added by Team Zynga. till then have fun with your fellow neighbors and enjoy the weekend.