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# Category Archives: Puzzles

## The Fifteen Ball Puzzle

Can you arrange 15 billiard balls to form a “difference triangle” in the usual triangular configuration, that is, the arrangement that you would see before the start of a game of pool? The number 1 through 15 is arranged in … Continue reading

## The Sixth Power Problem

Only using digits 0 to 9 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) once, can you form three numbers a, b and c so that the sixth power of c is equal to the sum of a and b?

## The Missing Leprechaun Puzzle

At first, there were 15 leprechauns when the three pieces of the puzzle pieces were put together. However, after swapping the two smaller pieces, there are now only 14 leprechauns left. One of the leprechauns has vanished! So, how is … Continue reading

Posted in Mathematics, Oddities, Puzzles
Tagged Blog, Geometry, Math, Mathematics, Oddities, Puzzles
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## Repeating Digits In Different Bases

931 (in base 10) is an interesting number since in two other bases, it’s a repeating 3-digit number, namely, in base 11 and base 30. and Can you find the other three-digit numbers with this property?

## Little Octagons To A Big Octagon

A decoupage problem consists of cutting up one figure in order to reassemble its pieces in the shape of another figure. A closely related problem is one of assembling, starting with several figures of identical shape and then cutting them … Continue reading

## Country Names With One Syllable

There are only five countries which have one-syllable names in the English language. Can you name these countries?

## Can Two 2’s Produce 5?

Using only two 2’s and any mathematical operations, functions and symbols that you want (and I mean ANY!), try to make two 2’s equal to 5. Trust me, this problem is harder than it looks as you would find out … Continue reading