With baseball season just under way in most of the country, there is still plenty of head-scratching over what bats can be used, and how some of these leagues went about banning them.
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It won't be a seen as an essential upgrade - you may remember the head-scratching about what the iPad was for when it launched in April 2010 - but it will both exploit and further engender the loyalty of Apple's army of fans.
Dutschke's arrest was the latest head-scratching twist in what could be a tale of small-town intrigue that blew up to become international news.
"We're actually just scratching the surface of what this can do for us, " he says.
And so hospitals are often scratching their heads about what could this be.
Commodities funds that hold WTI are also scratching their heads over what to do about buying and selling an oil that no longer reflects the wider global market.
Design a steel frame is lifted onto the build table and the team walks around it, looking at the frame from all angles, scratching their heads and imagining what they could do with it.
What left some folks scratching their heads was that Costco is borrowing money to finance the dividend.
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Thanks to the lack of an effective regulator, investors are left scratching their heads, unsure of what to do when something seems wrong.
What has most people scratching their heads is the black crow that appears to hover over Depp's head, and the black stripes that run vertically down his painted face.
However - and there's always a however - up till now the membership and voters alike might also be scratching their heads as they try and work out exactly what the new Plaid leader's political strategy actually is.
But a little scratching on the gold-plate of this ideal reveals it for what it is: a modern targeting technique, albeit a big step up from zip-codes, but certainly neither an answer to what consumers expect of brands in the digital space nor a guarantee of increased attention or ad contagion of the desired viral variety.
At any given moment, there are groups of traders who are scratching their heads, punching their computer monitors or vomiting on their desk because what they thought was a golden ticket turns out to be anything but.
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