Is there any site like India Study Channel in the Web world?

Members,
India Study Channel (ISC) is a website where its members enjoy life by participating in Active GD, Story writing contests, Quiz & puzzle contests, TOW contests and various contests announced from time to time. Also, ISC awards Cash Prizes/ Cash credit to the winners of the contests.

I wish to know - Is there any other site in the web world, where Active GD and contests are conducted and cash prizes awarded? If yes. Give the details.