On-Air Challenge: For each six-letter word given, rearrange the letters to make two three-letter words that rhyme. Example: For the word "tweets," the pair of rhyming three-letter words would be "wet" and "set."

Last Week's Challenge From Listener Fred Orelove Of Richmond, Va.: Think of a well-known retail store chain in two words. Remove one letter from its name. The remaining letters, in order, will spell three consecutive words that are synonyms of each other. What are they? Hint: The three words are all slang.

Many of us were introduced to the term LIBOR for the first time this week, when it was revealed that some banks might have been manipulating the dull but vital interest rates to gain an edge in the market.

The heat is continuing to shatter records across the Midwest. Indiana is among the states being smothered by triple-digit temperatures and excessive heat warnings are in effect, but still many Hoosiers have to work out in the dangerous conditions. Sara Wittmeyer from member station WFIU reports on how people are coping during the heat wave and when they might see some relief.

"I will be outspent." This simple phrase headed an email President Obama recently sent to supporters.

"We can be outspent and still win," the message read. "But we can't be outspent 10 to 1 and still win." Obama asked for donations of as little as $3 to compete against the deep pockets of Republican challenger Mitt Romney and the super political action committees that back him.

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SCOTT SIMON, HOST:

Time for your letters.

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SIMON: Last Saturday, NPR's Jennifer Ludden introduced us to 30-year-old Michelle Holshue, as part of NPR's "American Dream" series. Ms. Holshue graduated with $140,000 in student loan debt just as the recession hit. She worries she'll never be able to own a home, or raise a family.

The city of Scranton, Pa., sent out paychecks to its employees Friday, like it does every two weeks. But this time the checks were much smaller than usual. Mayor Chris Doherty has reduced everyone's pay — including his own — to the state's minimum wage: $7.25 an hour.

Doherty says his city has run out of money.

Scranton has had financial troubles for a couple of decades — the town has been losing population since the end of World War II. But the budget problems became more serious in recent months as the mayor and the city council fought over how to balance the budget.

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SCOTT SIMON, HOST:

You may have heard of 3-D printers. These are computer controlled machines that create three-dimensional objects from a variety of materials. They've been kind of a novelty for a while but now they are being discovered by everyday consumers. Jon Kalish reports.

JON KALISH, BYLINE: Sean Hurley works for a software company called Autodesk. Not long ago the door on his clothes dryer at home developed a problem. It wouldn't stay shut, which made it impossible to use the dryer.