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The Number of the Day: 19

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Rappers and poets take note: Most people have heard there are no words that rhyme with "orange." But according to Dictionary.com, there are 19 words in the English language that have no perfect rhyme.


Related Fact: The words are angst, bulb, cusp, film, gulf, kiln, oblige, opus, orange, pint, plankton, rhythm, silver, yttrium, depth, breadth, width, month and glimpsed. Can you think of any they missed? Or can you find a perfect rhyme for one of these 19?

[Source: Dictionary. See previous Numbers of the Day here. ]

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This Puzzling Math Brain Teaser Has a Simple Solution
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Fans of number-based brainteasers might find themselves pleasantly stumped by the following question, posed by TED-Ed’s Alex Gendler: Which sequence of integers comes next?

1, 11, 21, 1211, 111221, ?

Mathematicians may recognize this pattern as a specific type of number sequence—called a “look-and-say sequence"—that yields a distinct pattern. As for those who aren't number enthusiasts, they should try reading the numbers they see aloud (so that 1 becomes "one one," 11 is "two ones," 21 is "one two, one one,” and so on) to figure the answer.

Still can’t crack the code? Learn the surprisingly simple secret to solving the sequence by watching the video below.

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What Number Is The Answer?
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