Brain Teasers

1. After a local Post Office burglary, five suspects were being interviewed.
Below is a summary of their statements.
Brian said: It wasn't Charles; It was Alan
Derek said: It was Charles; It wasn't Alan
Charles said: It was Brian; It wasn't Eric
Alan said: It was Eric; It wasn't Brian
Eric said: It was Derek; It was Alan 
Police know that each of them told the truth in one of the statements and lied in the other. From this information can you tell who committed the crime?

2. You have the misfortune to own an unreliable clock.
This one gains exactly 15 minutes every hour.
It is now showing 3.00am and you know that is was correct at midnight, when you set it. If the clock stopped four hours ago, what is the correct time now?

From: brainbashers.com