Category Archives: Math Puzzles

Problem of the Month

Posted on May 28, 2008 by MathParadise

What are the next 4 letters or numbers in this sequence? J, 1, M, 9, M, 25, J, …

Posted in Brain Teasers, Logic Games, Math Puzzles | 13 Comments

Blonde solves puzzle!

Posted on May 27, 2008 by MathParadise

Two blondes are sitting in a street cafe, talking about the children. One says that she has three daughters. The product of their ages equals 36 and the sum of the ages coincides with the number of the house across … Continue reading →

Posted in Brain Teasers, Logic Games, Math Puzzles | Tagged , | 9 Comments

Are you smarter than a Chinese 7th grader?

Posted on May 23, 2008 by MathParadise

The following is a problem from a geometry textbook for Chinese 7th graders: In the above figure, Triangle ABC and ADE are both isosceles triangles (AC = AB, and AD = AE). Prove that an extension of DE is perpendicular … Continue reading →

Posted in Math Puzzles | Tagged , | 9 Comments

Number Sequence Puzzle

Posted on May 22, 2008 by MathParadise

Can you figure out the next line of numbers for this numerical sequence? Post your solution or ask for hints in the comments!

Posted in Logic Games, Math Puzzles | 7 Comments

Math Puzzle of the day #1

Posted on May 21, 2008 by MathParadise

You wish to weigh stones on a balance. There are 27 stones total, and 26 of them weigh 10 ounces each, but one weighs 11 ounces. What is the minimum number of times you need to use the balance beam in order to find out for … Continue reading →

Posted in Logic Games, Math Puzzles | Tagged , , , | 5 Comments