Maintain Your Brain Friday - Truth Puzzle

Someone robbed a computer shop yesterday.  Four suspects were rounded up and interrogated.  One of them was indeed the robber.  Here's what they said under police questioning:

Arthur: Daniel did it.
Daniel: Tug did it.
Garth: I didn't do it.
Tug: Daniel lied when he said that I did it.

Only one of these four statements turned out to be true.  Who is the guilty man?

Maintain Your Brain Friday - Cryptogram

Cryptograms are secret code puzzles.

Cryptogram Example:
JGNNQ = HELLO.  The word was encoded by replacing each of its letters with the second letter after it in the normal alphabetic sequence.  J represents H (2 letters down), G represents E (2 letters down), N means L (2 letters down), and Q means O (2 letters down).  Thus, the hidden word is hello.

Now, it's your turn!

Here's the title of a famous American movie that has been encrypted.  What is the movie?

IQPG YKVJ VJG YKPF


One more:

This cryptogram conceals an English proverb.

B CJSE JO UIF IBOE JT XPSUI UXP JO UIF CVTI


Good luck!  The answers will be posted in the comment section.

I'm Back!

Sorry that I've been MIA for a few months.  I started a new job in October and several more life changes are on the way.  I haven't forgotten about my blog, I just got bogged down with everything else.  I am making it a priority to keep the blog up to date again.  Look for another new post on Friday, when I will return the "Maintain Your Brain Fridays."

I read an article today on tips to help remember people's names.  I thought it was interesting and thought you might enjoy it. http://bodyodd.msnbc.msn.com/_news/2012/05/01/11477267-never-forget-a-name-again-tips-from-a-memory-expert?lite