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Calculate the number 778

NUMBERMANIA: Calculate the number 778 using numbers [3, 4, 2, 4, 13, 146] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 1

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Visit to the museum

Visiting the modern art museum, a lady turned to an attendant standing nearby.

"This," she said, "I suppose, is one of those hideous representations you call modern art?"

"No, Madam," replied the attendant. "That one's called a mirror."

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Dental pliers

In 1978, Francisco Garcia was granted patent No. 4,081,909 for "orthodontic pliers." The pliers are especially useful for bending the alignment wire end during all phases of the Begg orthodontic technique. The pliers comprise a pair of pivoted jaw members from the ends of which extend a male and female beak at right angles to the jaws. The male beak is cylindrical and mates with the semi-tubular female beak. Thus the pliers enable quick and easy bending of the arch wire ends without deforming the main arch wire. This leaves the end of the wire away from the cheek and gum of the patient, who is saved the discomfort of scraped cheeks or gums.

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