www.braingle.com

Anchor text: rec.puzzles Hall of Fame

Wikipedia: Wikipedia:Articles for deletion/Safe sex makespan

Anchor text: Online Tap Code Encoder/Decoder

Wikipedia: Tap code

Anchor text: any number of universities

Wikipedia: Wikipedia:Reference desk/Archives/Language/2008 May 27

Anchor text: Logic-Grid Brain Teasers

Wikipedia: Wikipedia:Reference desk/Archives/Mathematics/2010 August 23

Wikipedia: Four glasses puzzle