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Longest Word Without Repeating Letters

What is the longest word without any repeated letters?

Uncopyrightable, with 15 letters and not a single one repeated. Dermatoglyphics, the study of fingerprints, works too.

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The Longest Double Letter Word

What is the longest unscientific English word that uses every letter in the word exactly twice? For example, noon has two Ns and two Os, but it’s not nearly long enough.

Happenchance. There are two Hs, two As, and so on for all the letters in the word. The longest scientific word with the same property is probably esophagographers.

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What is the Highest Number Without the Letter N?

What is the highest regular counting number that is spelled without the use of the letter “N”? (No Googleplex or Graham’s number)

Eighty-eight. From then on, they all have the letter “N”.

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What Is The Longest Word With Horizontal Symmetry

A word with horizontal symmetry is one whose letters are a mirror image of themselves. If you drew a horizontal line across the word and folded it over, it would overlap on itself. For example, EXCEEDED and ICEBOX have horizontal symmetry, but VERTICAL and SIMPLE do not.

What is the longest word with horizontal symmetry?


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Longest Words With Letters in Alphabetical Order

What is the longest, non-scientific word to have all of its letters in alphabetical order?


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Only Self-Enumerating Number

What is the only self-enumerating number in English?

Four. The number four has four letters, making it self-enumerating. Interestingly, there are no self-enumerating numbers in French.

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Robbers Took Everything They Could

Two robbers took everything they could get their hands on. A police officer saw it but did nothing to stop them. Why?

It was Halloween. The robbers and police officer were all kids dressed up in costume, and all they took was candy.

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Two Four Three Five Six

0 2 4 3 5 6 8 9 7 11 10 12 13 14 15 16 18 17 20 21 22 19 24 23 26 25 28 29 27

What is the next number in the sequence?

31. The tenth number is 10 + 1 = 11. The twentieth number is 20 + 1 = 21, therefore the thirtieth number is 30 + 1 = 31.

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Lines in the Rebus

What does this represent?

| R | E | A | D | I | N | G |

Reading between the lines

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TOWN Rebus

What does this represent?



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