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Which American entrepreneur and businessman developed the principles of modern bridge in 1925?

Walter Cunningham
Henry Flager
Lamar Hunt
Harold Vanderbilt
Harold Stirling Vanderbilt was an American railroad executive, a champion yachtsman, an innovator and champion player of contract bridge. He came from a famous family of entrepreneurs, and was also an avid sailor, winning the Regatta of the America Cup three times.
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Walter Cunningham
Henry Flager
Lamar Hunt
Harold Vanderbilt
answers
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flagAustralia
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7%
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flagthe United States
15%
21%
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54%
66
flagthe United Kingdom
21%
25%
21%
31%
32
flagthe Netherlands
10%
30%
30%
30%
10
flagPoland
28%
23%
19%
28%
1652
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22%
22%
26%
27%
61
flagSwitzerland
33%
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41%
25%
12
flagIndia
36%
22%
18%
22%
22
flagAustria
43%
25%
12%
18%
16

What was the tarot deck used for during the Middle Ages?

spellcasting
future telling
solitaire
entertainment games

What is the sum of the opposite sides of a dice?

5
6
7
8

What is the sum of all the numbers on the roulette wheel?

600
666
783
1000

The idea that the nascent universe passes through the phase of exponential expansion, which was driven by the positive density of vacuum energy, is called;

Cosmic inflation
Grand unification theory
Theory of Supersymmetry
All answers are correct.