Image: NASA In his Paradoxes in Probability Theory and Mathematical Statistics (1986), Gábor J. Székely shared a paradox learned from his professor, Alfréd Rényi: Since I started to deal with information theory I have often meditated upon the conciseness of poems; how can a single line of verse contain far more ‘information’ than a highly […]

I took 1 from 19 and I got 20. How was that possible? . . . . Solution (Click to Show) It’s in Roman numeral. So, taking away I (1) from XIX (19) leaves me with XX (20).

The is a guest post by Prince Kapoor. You will always find mathematics at the base of any and all fields related to technology and science. Some of the biggest mysteries of the universe such as the big bang theory and black holes can be solved by using mathematics. For some people, the thought of […]

Saunders Mac Lane (1909 – 2005) was an American mathematician who became known for being one of the proponents of category theory. During an interview with The Mathematical Review in 1976, he reminisced about the time when he was learning about geometry in high school: I recall one occasion involving a theorem about a triangle: I knew […]

Coining New Words Carl Sagan Physicists had to invent words and phrases for concepts far removed from everyday experience. It was their fashion to avoid pure neologisms and instead to evoke, even if feebly, some analogous commonplace. The alternative was to name discoveries and equations after one another. This they did also. But if you […]

Here’s another match equation puzzle. The illustration represents an incorrect Roman numerals equation (3 = 30). Move only two matches to make this equation valid. You cannot shift the position of the other matches. Solution (Click to Show) The solution involves Roman numerals and a multiplication sign. So, it can be read as: C = […]

There is a quaint story in Ripley’s Believe It or Not! 15th Series (1969) about a man who used mathematical terms to propose. Robert Greer, a mathematics teacher at the Mount School in York, England, made the following proposal to a girl named Anne in 1880: If R = 1/2 and A = 1/2, Then R + […]

The above illustration depicts an invalid Roman numerals equation (the left side is 6 and the right side is 2) using seven matches. Find a way to correct this equation by only moving one match. You cannot shift the position of the other matches. Solution (Click to Show) As is equal to 1, the equation […]

1. Squares with Twin Halves 36,363,636,3642 = 1,322,314,049,613,223,140,496 The first 11 digits of the square are the same as the last 11 digits. This is the smallest possible solution for this pattern. Here’s another one: 63,636,363,6372 = 4,049,586,776,940,495,867,769. Furthermore, adding these two numbers results to: 36,363,636,364 + 63,636,636,637 = 100,000,000,001. 2. Consecutive Squares with a Cube Sum […]

When Pierre de Fermat conjectured his last theorem, of which what would be known as the Fermat’s Last Theorem, in 1637, he only wrote it on the margin of his copy of Arithmetica. He claimed that he knew the proof, but it was too large to fit in the narrow margin. H. H. Wu, mathematician […]