Will Shortz

On-air challenge: I'm going to give you some words and phrases. Each one conceals the name of a world capital in left to right order, although not in consecutive letters. Every answer has exactly 5 letters.

Example: STOCK SYMBOL --> TOKYO
1. SERIOUSLY
2. PARTISAN
3. COCK-AND-BULL
4. HUMANOID
5. MINISKIRT
6. SOUTH AFRICA

Last week's challenge: The name of what vehicle, spelled backward, becomes phonetically a four-word phrase identifying another vehicle?

On-air challenge: I'm going to give you clues for two words. Reverse the last four letters of the answer to the first clue to get the word that answers the second clue.

Ex. Part of a flower / Flat dish --> PETAL, PLATE
1. Apportion / Coral island
2. Distress signal shot into the air / Wild, as an animal
3. Rugged / Many-headed serpent of myth
4. Nosy person / Implement for eating soup
5. Call the wrong telephone number / Lost
6. Fragility / Place to order a sandwich to go

On-air challenge: I'm going to give you some words. For each word, move one letter to a different position to spell another word.

Ex. NEVER —> NERVE

1. HURLED

2. GALLERY

3. INFIELD

4. SOOTHER

5. STARTLE

6. AMENDER

7. WITHER

8. SPARED

9. TOPICAL

10. PARLEYS

11. RETAIN

12. NEAREST

13. SIMMERED

The last one is a little different. It has two answers — which go together to make a familiar compound word:

14. SHORE

On-air challenge: I'm going to give you three 5-letter words. You tell me a 5-letter word that can precede each of mine to complete a compound word or a familiar two-word phrase.

Ex. DRAFT HOUSE RIDER --> Rough (rough draft, rough-house, Rough Rider)

1. GLASS SLIDE MELON
2. TIGER TRAIL TOWEL
3. COUNT DONOR SPORT
4. SENSE POWER LAUGH
5. GIANT PEACE THUMB
6. SHIFT SHIRT STAND
7. SALAD PUNCH FLIES
8. TEASE POKER STEAK
9. STORY ORDER RANGE
10. SAUCE CIDER STORE
11. BLANK GUARD TAKEN

On-air challenge: Today I've brought a game of categories based on the word COMBS. You probably know how this works. I'm going to give you a series of categories. For each one, name something in it starting with each of the letters C-O-M-B-S.

For example, if the category were "Three-Syllable Boys' Names," you might say Christopher, Oliver, Mathias, Benjamin and Sebastian. Any answer that works is fine, and you can give the answers in any order.

1. Musical instruments

2. Cities in Florida

3. Wild mammals in America

On-air challenge: Today's puzzle has a bit of wordplay. Change one letter in each word provided to make two new words. The letter you change must be in the same position in each word of the pair. And the letter you change each of them to will be the same letter of the alphabet.

For example, "relief" and "mallet" become "belief" and "ballet."

On-air challenge: For every word provided (all starting with the letter "W"), give a proverb or saying that contains that word.

Last week's challenge: Take the phrase "I am a monarch." Rearrange the 11 letters to name a world leader who was not a monarch, but who ruled with similar authority. Who is it?

Answer: Chairman Mao.

Winner: David Slobodin of Asheville, North Carolina.

On-air challenge: Every answer today is the name of a famous, one-named singer like Madonna or Beyoncé. Identify each name from its anagram, to which one extra letter is added. The singers are a mix of past and present. For example, given "ADS" plus "E," the answer is "Sade."

On-air challenge: Each word provided is an anagram of something you might see in a kitchen. For example, "skin" is an anagram of "sink."

On-air challenge: Every answer today is the name of an Academy Award winner or nominee for best picture. Using the given anagram, decipher the title of the film. The films will go from oldest to newest. Example: OUTWORN (1940) (2 words). Answer: OUR TOWN

Last week's challenge: Name a major U.S. city in two syllables. Reverse the syllables phonetically to get the cost of attending a certain NBA game. What is it?

Answer: Phoenix, Knicks fee

On-air challenge: Every answer is a made-up two-word phrase, where the second and third letters of the first word are switched to get the second word. Example: Serene bivalve would be calm clam

Last week's challenge: This challenge came from listener Ben Bass of Chicago. Name someone who welcomes you in. Insert the letter U somewhere inside this, and you'll name something that warns you to stay away. Who is this person, and what is this thing?

Answer: Bell boy, bell buoy.

On-air challenge: Every answer is a familiar two-word phrase or name with the initials S.V. For example, given "noted Idaho ski resort," you would say "Sun Valley."

Last week's challenge: From listener Steve Baggish of Arlington, Mass. Think of a U.S. city whose name has nine letters. Remove three letters from the start of the name and three letters from the end. Only two will remain. How is this possible, and what city is it?

Editor's Note: In a previous version of this page we posted the wrong on-air challenge. The correct on-air challenge for the week is posted below.

On-air challenge: Given a clue, each response is a two-word answer with the first word starting with B-R and the second word starting with R.

Last week's challenge: Take the following 5-word sentence: "THOSE BARBARIANS AMBUSH HEAVIER FIANCEES." These 5 words have something very unusual in common. What is it?

On-air challenge: Today's puzzle is ba-a-a-ad. Every answer is a familiar two-word phrase or name in which the first word starts with BA- and the second word starts with D-.

Last week's challenge: This challenge came from listener Matt Jones of Portland, Ore. There are three popular men's names, each six letters long, that differ by only their first letters. In other words, the last five letters of the names are all the same, in the same order. Of the three different first letters, two are consonants and one is a vowel. What names are these?

On-air challenge: Today's puzzle is a game of categories based on the word peony. For each category, name something in the category beginning with each of the letters P-E-O-N-Y.

Last week's challenge: Name something in five letters that's nice to have a lot of in the summer. Change the last letter to the following letter of the alphabet. Rearrange the result, and you'll name something else that you probably have a lot of in the summer, but that you probably don't want. What is it? (HINT: the second thing is a form of the first thing.)

On-air challenge: Today's puzzle is called "Ch-Ch-Ch-Changes." Every answer is a word starting with the letters "ch," and your clue will be an anagram of the word.

Last week's challenge: Name a famous actress of the past whose last name has five letters. Move the middle letter to the end to name another famous actress of the past. Who are these actresses?

Answer: Greta Garbo/Eva or Zsa Zsa Gabor

Winner: Craig Moreland from Okemos, Mich.

On-air challenge: Two clues will be given for two five-letter answers. Move the middle letter of the first answer to the end of the word to get the second answer. Example: A weapon that's thrown; a tire in the trunk. Answer: spear/spare

On-air challenge: For each set of three words, find a word that can precede each one to complete a familiar two-word phrase or name. The first word in each set will name an animal. Example: turtle, spring, office. The answer would be box — box turtle, box spring, box office.

Last week's challenge: Think of a 10-letter adjective describing certain institutions. Drop three letters from this word, and the remaining seven letters, reading left to right, will name an institution described by this adjective. What institution is it?

On-air challenge: Every answer is a compound word or familiar two-word phrase or title in which each word has OU as its second and third letters. Example: Given "heading to Antarctica," you would say, "Southbound."

Next week's challenge: From 11-year-old listener Eli Shear-Baggish of Arlington, Mass. Name a certain trip that contains the letter S. Change the S to a C and rearrange the resulting letters. You'll name the location where this trip often takes place. Where is it?

Answer: Safari; Africa

On-air challenge: Today's puzzle is geographical. Every answer is the name of a river — identify it using its anagram minus a letter. Example: Top minus T = Po (River).

Last Week's Challenge: Name part of a TV that contains the letter C. Replace the C with the name of a book of the Old Testament, keeping all the letters in order. The result will name a sailing vessel of old. What is it?

Answer: Viking Ship

Winner: Jay Adams of Monticello, Fla.

On-air challenge: Every answer is a familiar two-word phrase or name in which the first word ends in E and the second word starts with Z. For example, given, "popular blush wine," the answer would be: White zinfandel.

Last week's challenge: This challenge came from listener Dan Pitt of Palo Alto, Calif. Take the name of a well-known American businessman — first and last names. Put the last name first. Insert an M between the two names. The result names a food item. What is it?

Answer: Muskmelon (Elon Musk)

On-air challenge: Every answer to the given clue is a made-up, two-word phrase in which you add IN to the front of the first word to get the second word. For example: shoe insert; sole insole

On-air challenge: The theme of today's puzzle is May. Every answer is a familiar two-word phrase or name in which the first word starts with MA and the second word ends with Y. Example: Alcoholic beverage made from fermented mash: Malt Whiskey

Last Week's Challenge: Name a famous actress of the past whose last name has two syllables. Reverse the syllables phonetically. The result will name an ailment. What is it?

Answer: Sarah Bernhardt — heart burn

Winner: David Hodges of Collingswood, N.J.

Spoiler Alert: The answers for today's on-air challenge are given below. Read no further if you're playing along with the audio.

On-air challenge: The on-air puzzle this week consists of some of the runner-up entries from our two-week creative challenge. Every answer has six or more letters.

On-air challenge: Today's puzzle is a game of categories based on the word "phlox." You'll be given some categories. For each one, name something in the category beginning with each of the letters P, H, L, O and X. For example, if the category were "comic books," you might say "Phantom, Hopalong Cassidy, Lone Ranger, Our Gang Comics and X-men." Any answer that works is okay, and you can give the answers in any order.

On-air challenge: Every answer is a five-letter word. You will be given a clue for the word. Besides describing the answer, the clue will also contain the answer in consecutive letters. For example, given "It's near the planet Mars," you would say, "Earth."

Last week's challenge Mike Reiss, a writer for The Simpsons: Name a famous actor or actress whose last name ends in a doubled letter. Drop that doubled letter. Then insert an R somewhere inside the first name. The result will be a common two-word phrase. What is it?

On-air challenge: For each word provided, give a word that can follow it to complete a familiar two-word phrase. The first two letters of the provided word should be the last two letters of the answer. Example: Red Square

Last week's challenge: Name certain trees. Also name something that trees have. Rearrange all the letters to get the brand name of a product you might buy at a grocery or drug store. What is it?

Answer: Firs + Leaves = Life Savers

Winner: Nils Thingvall of Lafayette, Colo.

On-air challenge: With spring in the air, it's a fitting time for a flower puzzle. Find the flower answer using its anagram, minus one letter. Example: R-I-S-H-I, minus H, is "iris."

Last week's challenge from listener Louis Sargent of Portland, Ore: Name a well-known American company. Insert a W somewhere inside the name, and you'll get two consecutive titles of popular TV shows of the past. What are they?

Answer: Westinghouse; West Wing, House

Winner: John Rowden of New York

On-air challenge: Three words that start with the same letter will be presented in a group. Find a word that shares the same first letter as the three, and that can follow each word within the group to complete a compound word or a familiar two-word phrase. Example: "big," "broad," "boy"; the answer would be "band" to get "big band," "broadband" and "boy band."