These cool pillows were inspired by the jigsaw puzzle pieces.
Now, though winning hearts and minds is "helpful", security unlocks the Afghan puzzle.
Recent research, though, into the way a snail's shell spirals may throw new light on this puzzle.
But we are not sure that we have found all the pieces in the jigsaw puzzle yet.
Two thirds of the students who imagined someone else in the tower solved the puzzle, but only 48% of those who pictured themselves there did.
The construction boom is over. The only puzzle is why investors still accept such low yields on us government bonds despite the grim fiscal outlook and the serious risk of dollar depreciation.
But this upheaval is a puzzle.
Click that button, then click the green jigsaw puzzle piece.
White discontent is a puzzle, because white Britons are much better off than others.
This poses a puzzle, because Hawking radiation does not convey any information about the interior of a black hole.
Physical exercise and engaging in novel brain-stimulating activities - such as the crossword puzzle or Sudoku - are two proven methods for helping keep your brain healthy.
As we try to find chemical stimulants for desire and arousal one of the puzzle mysteries is how to weave a chemical feeling into a human response that can only be appropriate in some contexts.
He has found out the puzzle.
Portray, or even conceive, of your work as an answer to a puzzle.
For Japan the news was the piece of a jigsaw that went towards solving the puzzle of numerous unexplained disappearances.
If you can do the crossword puzzle in your sleep, it's time for you to move on to a new challenge in order to get the best workout for your brain.
Japan's macroeconomic puzzle has a microeconomic parallel.
I got stuck with that jigsaw puzzle so I've laid it aside for the time being.
Gathering information is much like doing a jigsaw puzzle. You get bits of information and put them together to build the bigger picture.
The puzzle defied solution.
The final piece of the puzzle is connecting these varying technologies together.
If you took the inner thoughts, or monologues, of various strangers living in different parts of the world and lined them up as if in a crossword puzzle, these monologues could eventually create a conversation.
Imagine a jigsaw puzzle: finding the right arrangement of pieces is difficult, but you can tell when the puzzle is finished correctly just by looking at it.
The only puzzle, given how incredibly wealthy we are by the standards of our ancestors, is why more people don't opt for the extra time instead of the extra money.
In the first puzzle, the students placed an array of yellow and blue lighted circles at the end of the bee arena.
There's more and more evidence now that these factors are important to solving the puzzle of hypertension.
"The results are just a piece of the jigsaw puzzle in terms of climate models. They are part of the ongoing process of climate model evaluation," he said.
We keep trying to put the jigsaw puzzle together.
But the yen's softness this year is a puzzle.
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