They think, Okay, so I know an egg  weighs 20 grams.. But the sentence is not just saying it weighs 20  grams. It says it weighs 20 grams AND half an egg. If you read it  backwards, you would understand. Let's try, An egg weighs half an  egg and 20 grams.. Two halves make one.
Diamond Valley Lake lies between two mountains in California's Inland Empire tourism region. The 4,500-acre lake is Southern California's newest and largest reservoir. It has only been at full pond since 2002 and already has been crowned the Jewel of California lakes, with a reputation for excellent fishing.
This article is about the lake in California. For other uses, see Cedar Lake. Cedar Lake is an artificial lake in the San Bernardino Mountains of California that has appeared in dozens of Western films. It is the centerpiece of Cedar Lake Camp, a private retreat center owned and operated by the First Congregational Church of Los Angeles.