Bidding begins for Buffett lunch on eBay

Warren Buffett has put himself on the eBay auction block, offering his words of wisdom over lunch to the highest bidder.

Bids start at $25,000 and all proceeds benefit the Glide Foundation, which provides social services to the poor and homeless in San Francisco. The auction ends on Friday.

The chief executive of Berkshire Hathaway has previously raffled himself off for lunch, and he hopes this year's auction tops the million-dollar mark as it has done in the past.

Canadian investment firm Salida Capital once paid $1.68m to chat and chew with Buffett, according to the Associated Press.

In another year, a Chinese investment fund manager shelled out a $2.11m for the privilege of dining with the Sage of Omaha; the most expensive charity item eBay had ever sold.