Calculate the number 3398
[7172] Calculate the number 3398 - NUMBERMANIA: Calculate the number 3398 using numbers [2, 6, 5, 7, 26, 573] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 2
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Calculate the number 3398

NUMBERMANIA: Calculate the number 3398 using numbers [2, 6, 5, 7, 26, 573] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
#brainteasers #math #numbermania
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How Cold Is It Outside?

How Cold Is Cold?
60 Californians put on sweaters (if they can find one)
50 Miami residents turn on the heat
40 You can see your breath, Californians shiver uncontrollably, Minnesotans go swimming
35 Italian cars don't start
32 Water freezes
30 You plan your vacation to Australia
25 Boston water freezes, Californians weep pitiably, Minnesotans eat ice cream, Canadians go swimming
20 Politicians begin to talk about the homeless, New York City water freezes, Miami residents plan vacation further South
15 French cars don't start, Cat insists on sleeping in your bed with you
10 You need jumper cables to get the car going
5 American cars don't start
0 Alaskans put on T-shirts
-10 German cars don't start, Eyes freeze shut when you blink
-15 You can cut your breath and use it to build an igloo, Arkansans stick tongue on metal objects, Miami residents cease to exist
-20 Cat insists on sleeping in pajamas with you, Politicians actually do something about the homeless, Minnesotans shovel snow off roof, Japanese cars don't start
-25 Too cold to think, You need jumper cables to get the driver going
-30 You plan a two week hot bath, Swedish cars don't start
-40 Californians disappear, Minnesotans button top button, Canadians put on sweaters, Your car helps you plan your trip South
-50 Congressional hot air freezes, Alaskans close the bathroom window
-80 Hell freezes over, Polar bears move South
-90 Lawyers put their hands in their own pockets
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Screw pointing and threading machine patent

In 1852, Cullen Whipple, of Providence, R.I., patented his "Mechanism for Pointing and Threading Screw-Blanks in the Same Machine" (U.S. No. 9477). His new design incorporated additional cutters in the same threading machine he had patented on 18 Aug 1842 (No. 2754, reissued 5 Mar 1850). Before machines provided a point on screws, they had blunt ends, and it was necessary to drill a starter hole. In Oct 1840, he was one of ten incorporators of The New England Screw Co. After his original thread-cutting machine, he invented another for shaving the heads of screws (patented 6 Apr 1843) and one for removing the burs left in cutting the slots in the heads (patented 19 Apr 1843). He patented seven other screw-manufacturing devices.«
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