-
Recent Posts
- A^2 = B^3 + C^3
- Set {4,b,c,d,e} such that the product of any two of them increased by 1 is a square
- smallest integer whose first n multiples all contain a 3
- Set {3,b,c,d,e} such that the product of any two of them increased by 1 is a square
- Set {2,b,c,d,e} such that the product of any two of them increased by 1 is a square
Recent Comments
Archives
- February 2017
- January 2017
- December 2016
- November 2016
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
Categories
Meta
Category Archives: Logic Puzzles
Two Logic Puzzles
(1) Which offer is better? Two people, A and B, each make an offer (see below). The problem is to determine which offer is better. Person A offers: You are to make a statement. If the statement is … Continue reading
My collection of #Mensa puzzles
(1) If James purchased: sweater, encyclopedia, mug, aftershave, and a jacket. Who purchased: notebook, anorak, socks, underwear, and sandles? (2) What number should replace the question mark? (3) The … Continue reading
Logic puzzle #Mensa | Card puzzle
Puzzle: Each card has a letter (consonant or vowel) on one side, and a number (odd or even) on the other side. Rule: If there’s a vowel on one side of the card, there’s always an odd number on the … Continue reading
Daisy Petals Game
Daisy Petals Description In this game there will be a daisy with 20 petals. You and the computer will take turn to pick petals from the daisy, the one who picks the last petal wins. Each time you can choose … Continue reading
What specific amount is a couple/ a few/ many/ several or numerous?
Question: What specific amount do you think of when saying …. …. a couple? …. a few? …. quite? …. a bit? …. bit by bit? …. quite a bit? …. quite a few? …. many? …. a lot? … Continue reading
#Logic Puzzle: Is Santa Claus Real?
Concepts used : Curry’s paradox is named after the logician Haskell Curry. http://en.wikipedia.org/wiki/Curry’s_paradox http://plato.stanford.edu/entries/curry-paradox/ Russell’s paradox http://en.wikipedia.org/wiki/Russell’s_paradox http://plato.stanford.edu/entries/russell-paradox/ Modus ponens http://en.wikipedia.org/wiki/Modus_ponens Fallacious Proof: Let c be the set {x : if x ∈ x, then Santa Claus … Continue reading
Brain Teasers – Part Two
Here’s my collection of Mensa, Mensa-like and IQ questions. Have fun! #1 What is the next number in the series? What is X? 4, 6, 12, 18, 30, 42, 60, X #2 Draw a clock … Continue reading
Brain Teasers – Part One
Here’s my collection of Mensa, Mensa-like and IQ questions. Have fun! #1 In British Columbia you cannot take a picture of a man with a wooden leg. Why not? #2 Which is correct to say, “The … Continue reading
Godel’s Mathematical Proof of God’s Existence
Kurt Gödel http://plato.stanford.edu/entries/goedel/ One page proof of God’s existence. “Reflections on Kurt Gödel” by Hao Wang, MIT Press This is an exercise in Modal logic. What do you make of such proof? Can you show the weakness of … Continue reading
Fun With Num3ers 