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Cody Rookus

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last 3 solved tasks
Find the next number in this series: 5, 7, 12, 19, 31, 50, ?
What number should fill in the blank? (8, 43, 11, 41, ?, 39, 17)

Selman Waksman

Born 22 Jul 1888; died 16 Aug 1973 at age 85.Selman Abraham Waksman was an Ukrainian-American microbiologist and biochemist who was one of the world’s foremost authorities on soil microbiology. After the discovery of penicillin, he played a major role in initiating a calculated, systematic search for antibiotics among microbes. In 1939, Dubos, a previous student, pointed out a bacteria-killing agent in a soil microorganism. He introduced the term antibiotic, “against life.” In 1943, he isolated streptomycin from a mold he had known and studied early in his life. His consequent discovery of this antibiotic streptomycin, the first specific antibiotic effective against tuberculosis, earned him the 1952 Nobel Prize.

A man enters a barbershop for...

A man enters a barbershop for a shave. While the barber is foaming him up, he mentions the problems he has getting a close shave around the cheeks.
"I have just the thing," says the barber taking a small wooden ball from a nearby drawer. "Just place this between your cheek and gum."
The client places the ball in his mouth and the barber proceeds with the closest shave the man has ever experienced. After a few strokes, the client asks in garbled speech, "And what if I swallow it?"
"No problem," says the barber. "Just bring it back tomorrow like everyone else does."
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