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Milana Padezanin

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last 3 solved tasks
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
People buy me to eat, but never eat me. What am I?
If b6146 + ab114 = 5ca60 find number abc. Multiple solutions may exist.

Georg von Peurbach

Died 8 Apr 1461 at age 37 (born 30 May 1423).Austrian mathematician and astronomer who promoted the use of Arabic numerals (introduced 250 years earlier in place of Roman numerals), especially in a table of sines he calculated with unprecedented accuracy. He died before this project was finished, and his pupil, Regiomontanus continued it until his own death. Peurbach was a follower of Ptolomy's astronomy. He insisted on the solid reality of the crystal spheres of the planets, going somewhat further than in Ptolomy's writings. He calculated tables of eclipses in Tabulae Ecclipsium, observed Halley's comet in Jun 1456 and the lunar eclipse of 3 Sep 1457 from a site near Vienna. Peurbach wrote on astronomy, his observations and devised astronomical instruments.[Image: from Epitome of the Almagest.]

Catching Cows

More than anything, Bob wanted to be a cowpoke. Taking pity on him, a rancher decided to hire the lad and give him a chance.
"This," he said, showing him a rope, "is a lariat. We use it to catch cows."
"I see," said Bob, trying to seem knowledgeable as he examined the lariat. "And what do you use for bait?"

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