Internet word game generates enough money to feed 50,000 people for a day in just a month, the UN's World Food Programme (WFP) has said.

The game, FreeRice, tests the vocabulary of participants. For every correct answer, the website donates money to buy 10 grains of rice to its official humanitarian partner, WFP.

In its first month, it has raised 1 billion grains of rice which is enough rice to feed 50,000 people for one day.

“Every grain of rice is essential in the fight against hunger,” said WFP Executive Director Josette Sheeran, adding that hunger claims more lives than AIDS, tuberculosis and malaria combined.

Companies advertising on the website provide the money to the WFP to purchase and distribute the rice.

FreeRice is the brainchild of US online fundraising pioneer John Breen.

Ask your children to play this game, improve their vocabulary and feed the hungry at the same time.