A Four-Letter Word For Capital City | WAMU 88.5 - American University Radio
Filed Under:

A Four-Letter Word For Capital City

Play associated audio

On-Air Challenge: Every answer is the name of a world capital. You'll be given a four-letter word. The first two letters are the first two letters of the city's name, and the last two are the last two letters of the country's name. For example, if you were given "loin," the answer would be London, Great Britain.

Last Week's Challenge from the Grabarchuk family: Take 15 coins. Arrange them in an equilateral triangle with one coin at the top, two coins touching below, three coins below that, then four, then five. Remove the three coins at the corners so you're left with 12 coins. Using the centers of the 12 coins as points, how many equilateral triangles can you find by joining points with lines?

Answer: 25 equilateral triangles

Winner: Chris Anderson from Portland, Ore.

Next Week's Challenge from listener Henry Hook of Brooklyn, N.Y.: What number comes next in the following series: 2, 4, 6, 9, 11, 15, 20, 40, 60 and 90?

Submit Your Answer

If you know the answer to next week's challenge, submit it here. Listeners who submit correct answers win a chance to play the on-air puzzle. Important: Include a phone number where we can reach you Thursday at 3 p.m. Eastern.

Copyright 2011 National Public Radio. To see more, visit http://www.npr.org/.

NPR

Got Dessert? Slather On The Salted Caramel, Or Just Nibble Some

Once a high-end fad, the salted caramel dessert has made inroads into the most mainstream of American food chains, TGI Fridays. Maybe it was inevitable, given our historic cravings for salt and sweet.
NPR

Got Dessert? Slather On The Salted Caramel, Or Just Nibble Some

Once a high-end fad, the salted caramel dessert has made inroads into the most mainstream of American food chains, TGI Fridays. Maybe it was inevitable, given our historic cravings for salt and sweet.
NPR

Hillary Exhilaration Helps Energize Generation Z

Many young people are excited about the 2016 presidential election — and the chance to make history.
WAMU 88.5

Cellphones In Class Are No Problem In One Maryland School District

An Eastern Shore school district is allowing teachers to treat students' cellphones, tables and laptops as a resource rather than a nuisance.

Leave a Comment

Help keep the conversation civil. Please refer to our Terms of Use and Code of Conduct before posting your comments.