Oldest actor to win the Oscar for Best Actor:

Henry Fonda
Fonda was 76 when he won for 1981's "On Golden Pond."
Source: Herald Sun (Melbourne), 3/22/2003

 
   
  Youngest actor to win the Oscar for Best Actor:

Adrien Brody
Brody was 29 when he won for 2002's "The Pianist"
Source: The Advertiser, 1/29/2004

 
   
  Person who has most frequently hosted the Oscars:

Bob Hope
Hope hosted the Oscars 18 times. Behind Hope is Billy Crystal, who has hosted 7 times.
Source: People, 4/7/2003

 
   
  Weight of an Oscar statuette:

8 and 1/2 pounds
An Oscar stands 13 and 1/2 inches tall and is made from copper, nickel, silver, and 24 karat gold.
Source: St. Petersburg Times, 2/27/2005