CFB fans asked, we answered

Each week, ESPN Stats & Information will answer statistical-related college football questions posed via Twitter (use the hashtag #AskESPNStats). Feel free to send your questions along.

What team has the largest differential between its offensive team rank and defensive team rank? – asked by @SteveGGerken

Marshall is ranked 7th offensively (gaining 561 YPG) and 117th defensively (allowing 509 YPG). The 110 rank difference is the largest in FBS. The 2nd largest differential is Maryland (ranks 116th offensively and 8th defensively in terms of YPG).

What defense has the most red zone stops? – asked by @Ksstl227

BYU has allowed opponents to score on just 37.5 percent of their trips into the red zone, lowest percentage in FBS. In terms of touchdowns, South Carolina has allowed opponents to score a touchdown on 1-of-8 red zone drives (12.5 percent), the lowest percentage in FBS.

What quarterback has the largest increase in completion percentage this year? – asked by @MartyBad

Among quarterbacks that attempted at least 50 passes in 2011, Texas' David Ash has the largest increase in completion percentage from 56.9 percent in 2011 to 76.4 in 2012.

What CFB team has the longest current streak of scoring 40 or more points? – asked by @McNamaraUO

Perhaps it is no coincidence that this question comes from Oregon's assistant athletic director, because the Ducks are indeed tied for the longest active streak of 40-point games. Both Oregon and Baylor are riding seven-game streaks. The longest streak in the BCS era is 12 straight by Texas over 2005 and 2006.

Who was the last college QB to win national championship in his last year, then become the #1 overall draft pick in the spring? – asked by @OneManWarrior12

Just two years ago, Cam Newton pulled off that double. Before him, you have to go back to Notre Dame's Angelo Bertelli in 1944. Also of note, 2005 No. 1 pick Alex Smith led Utah to an undefeated record in his final season.

What is the longest a CFB team has ever gone without being shut out? – asked by @William_2512

BYU holds this honor, going an amazing 361 straight games without being shut out. The streak began in 1975 and lasted 28 years before coming to an end when Utah blanked the Cougars 3-0 in the Holy War.

But Michigan is creeping up on the streak. The Wolverines have the longest active streak at 342 games. It's a streak that began in 1984.