They can’t take the “truthiness” of it all at Lake Superior State University in Michigan.

“Truthiness” – coined by TV host Steven Colbert to describe ideas that seem true but may not stand up to evidence, logic or facts – made the university’s list of overused words for 2006. Truthiness “has been used up. What used to ring true is getting all the truth wrung out of it,” a university panel reports says.

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Think deep thoughts – and if they’re deep enough to get to the truthiness of it all, you could be dubbed America’s Greatest Thinker.

The big question for the 15th Great American Think Off: Which should you trust more – your head or heart?

You have until April 1 to mull it over. The contest’s Web site is http://www.think-off.org. The prize: An all-expense paid trip to New York Mills, Minn., where there are many lakes.

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Here’s a gem of a vacation spot – an Arkansas state park where tourists can search for diamonds and keep whatever they find.

But visitors to Crater of Diamonds State Park in Murfeesboro could come up with better names for their shiny rocks.

One man dug up a 2.37-carat white diamond last week and named it the Star of Thelma, after his wife.

And an Oklahoma cop named the 4.21-carat yellow gem he found last March the Okie Dokie diamond.

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It’s good to be the king – you can get people in the country next door to stop wafting very bad odors toward your palace.

Jordan’s King Abdullah II complained about odors from an Israeli livestock quarantine facility that are being blown across the border toward his palace in Aqaba, on the Red Sea.

Israeli officials immediately deodorized around the site, said Environment Minister Gideon Ezra.