BRAIN TEASERS

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Find the right combination

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.

Correct answers: 1

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Invisible patient

- Doctor, there is a patient on line 1 that say he's invisible.
- Well, tell him I can't see him right now.

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William Joscelyn Arkell

Died 18 Apr 1958 at age 53 (born 9 Jun 1904).English paleontologist, an authority on Jurassic fossils (those dating from 208 to 144 million years ago). Arkell taught at Trinity College, Cambridge University. His work includes the classification of Jurassic ammonites and an interpretation of the environments of that period. He wrote Jurassic Geology of the World (1956), which critically reviewed the information dispersed throughout the world's enormous literature on the world's Jurassic stratigraphy. He made numerous contributions to knowledge of the Jurassic stratigraphy, and gradually stabilized many stratigraphically significant zonal assemblages. In 1946, his "Standard of the European Jurassic" advocated a commission formulate a code of rules for stratigraphical nomenclature.

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