• Unimaginable Mathematical feats
  http://www-gap.dcs.st-and.ac.uk/~history/HistTopics/Mental_arithmetic.html
• Interesting mental sums can be tried here
  http://math.usask.ca/emr/menu_arith.html
• Maths is there around us everyday. See how here.
  http://www.carolhurst.com/subjects/math/mathout.html
• This page focuses on puzzles with sliding pieces!
  http://www.org2.com/jaap/puzzles/
• Classic tales are being rewritten with some contraint.
  Can you find out what that constraint is?
  http://users.aol.com/s6sj7gt/cadenza.htm

Check this site regularly for more interesting weblinks. New ones are regularly added.