You can explore sites that offer quizes for cash prizes or items which you can get and sell for cash. Some of the sites i have come across include
. Superbru.com is a site where you can predict scores for matches during the world cup. All you need is to sign in and join a pool. Some pools offer cash prizes for winner while others are just for fun.
. Toovia.com is urrently offering a world cup contest . You can register and play. Just wait for the outcome.