A boy is twice as old as his...
[3294] A boy is twice as old as his... - A boy is twice as old as his sister, and half as old as their father. In 50 years, his sister will be half as old as their father. How old is the boy now? - #brainteasers #math #riddles - Correct Answers: 66 - The first user who solved this task is Sanja Šabović
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A boy is twice as old as his...

A boy is twice as old as his sister, and half as old as their father. In 50 years, his sister will be half as old as their father. How old is the boy now?
Correct answers: 66
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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The flower vendor was usually...

The flower vendor was usually an old hand at unloading his last few bunches. Appealing to a businessman on his way home, the vendor said, "How about a nice bunch of roses to surprise your wife?"
"Haven't got a wife," responded the businessman gruffly.
"Then how about some carnations for your girlfriend?" proposed the vendor without missing a beat.
"Haven't got a girlfriend."
"You lucky guy!" The vendor broke into a big smile. "Buy both bunches to celebrate!"
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TB laboratory

In 1893, the first tuberculosis diagnostic community laboratory in the U.S. was authorized in New York City and opened by the New York City Dept. of Health under the direction of Dr. Hermann Michael Biggs. The laboratory administered sputum examinations, reporting and registrations (compulsory by institutions and voluntary by physicians), official supervision of isolation, terminal disinfection, provision of hospital facilities, and public education. The first research laboratory in the U.S. was established the following year, in 1894, by Dr. Edward Livingston Trudeau in a room in his home at Saranac Lake, N.Y.
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