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Riddle! What is it?

Dear and Guess on, what kind of device this ...



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Pictures
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You and your work *
...
10 Funny Mysteries
...
Unexplained
...
10 unsolved mysteries of the Solar system
...
4 Mysteries of Mikhail Lomonosov
...
5 puzzles that break your idea of logic
...
The famous logic puzzle on green-eyed
...
10 secrets of nature, that baffles modern science
...
Consciousness - the wind, we can not see it, but we can distinguish between results
...
The biggest mysteries of the human body
...
Landscaping (3 photos)
...
Instructions for the preparation of salad "Mystery"
...
Stunning 60 "hacks" of the brain that will make your life better
...
20 major mysteries of world history
...
Mysteries of the human body which were not disclosed by scientists to this day
...
Fotozagadka - that mug?
...
Want villa in the Canary Islands!
...
Vuoksa 2013 or Three Men in a Boat shy dog
...
Most mysterious disappearance of planes
...
A huge stage, many thousands Hall
...
The mystery that Elon Musk cleverly offers to solve when hiring at Tesla
...
The ancient mystery of the jungle: huge stone balls
...
Riddle of the day: what is depicted in the photo?
...
Restless inventor wife
...
Simple mystery
...
You and your work *
 Dog shalunyaka  Australian Santa Mazzei