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Solve This Number Puzzle

Find the next number in this series: 5, 7, 12, 19, 31, 50, ?

Correct answers: 199

The first user who solved this task is Djordje Timotijevic.

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Where were you born?

Brunette:
- Where were you born?
Blonde:
- California.
Brunette:
- Which part?
Blonde:
- All of me.

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Carl Zeiss

Died 3 Dec 1888 at age 72 (born 11 Sep 1816).German industrialist who gained a worldwide reputation as a manufacturer of fine optical instruments. After qualifying in medicine, he began the manufacture of optical instruments, which he knew would be in increasing demand as science and medicine advanced. He spent seven years in the workshops of various European instrument-makers before he founded an optical factory at Jena (1846). He quickly establishing a reputation for products of the highest quality. Twenty years later he went into partnership with Ernst Abbe (1840-1905), who was his advisor on theoretical advances in optics. Abbe further enhanced the reputation of the company and became its sole owner upon the death of Zeiss. Abbe enhanced the reputation of the company and established invested in the workers.

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