I can answer questions which are mathematical, logical, or wordplay related. I am not good at highly creative problems, or riddles.
I regularly do puzzles, and help out friends, teenagers. I read books written by Martin Gardener. I love the puzzles and Easter eggs in Douglas Hofstadter's Godel, Escher, Bach: an enternal golden braid.
A few examples of my writing: http://surajitbasu.sulekha.com/blog/post/2006/04/the-journey-down-the-number-line.htm
B. Tech. ( Computer Science), IIT Kanpur, India MBA ( Post-Graduate Diploma in Business Management), (Finance, Systems), IIM Calcutta, India