Calculate the number 1564
[2364] Calculate the number 1564 - NUMBERMANIA: Calculate the number 1564 using numbers [8, 4, 5, 1, 91, 717] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 28 - The first user who solved this task is Erkain Mahajanian
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Calculate the number 1564

NUMBERMANIA: Calculate the number 1564 using numbers [8, 4, 5, 1, 91, 717] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 28
The first user who solved this task is Erkain Mahajanian.
#brainteasers #math #numbermania
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A pastor goes to the dentist f...

A pastor goes to the dentist for a set of false teeth.
The first Sunday after he gets his teeth, he talks for only eight minutes. The second Sunday, he talks for only 10 minutes. The following Sunday, he talks for two hours and 48 minutes.
The congregation has to mob him to get him down from the pulpit, and they ask him what happened.
The pastor explains the first Sunday his gums hurt so bad he couldn't talk for more than 8 minutes. The second Sunday his gums hurt too much to talk for more than 10 minutes.
But, the third Sunday, by mistake he put his wife's teeth in and couldn't stop talking.
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Gaetano Arturo Crocco

Born 26 Oct 1877; died 19 Jan 1968 at age 90.Italian pioneer in aeronautics and space science who designed revolutionary airships and patented an early cyclic pitch design for helicopter rotors (1906). While the design of helicopters was in its infancy, Crocco recognized that a way to change the pitch cyclically on the blades was needed if a helicopter was to work properly in forward flight. He designed a number of airships in the early part of the 20th century and switched to designing rocket engines in the 1920s. Crocco founded the Italian Rocket Society (1951) and made many contributions to the theory of spaceflight. He calculated that a spacecraft could travel from Earth to Mars, perform a reconnaissance Mars flyby (without orbit), and return to Earth in a total time of about one year.«
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