What's worth saving at Lehman Brothers?

With Lehman Brothers' survival in question, officials of major global banks and the U.S. government were in weekend negotiations aimed at resolving the investment bank's precarious financial situation. Wall Street CEOs were being asked to come up with a way to deal with Lehman's problems and avoid the risks they posed to the financial industry and the broader economy; one of the options being explored was a purchase of Lehman by one of its healthier competitors.

Here are answers to some questions about Lehman Brothers Holdings Inc., and why other banks might be interested in buying some or all of its assets.

Q. Since Lehman's stock price has plunged 95 …