BRAIN TEASERS

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Which is a winning combination of digits?

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: 3

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Patient and Doctor

Patient: "Doctor, Doctor... I can't stop stealing things".
Doctor: "Take these pills for a week. If that doesn't work, I'll have a color TV".

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Nylon bristle toothbrush

In 1938, the first nylon-bristle toothbrush in the U.S. was described in a New York Times business report. Dr. West's Miracle-Tuft toothbrush, a new product from the Weco Products Company, was the first to use synthetic DuPont nylon bristles instead of natural hog bristles. It had four guarantees: “No bristle shedding, 100 per cent waterproofed, longer life, greater cleansing power.” Its price was to be 50 cents (with a fair-trade minimum of 47 cents). The report said an intensive national advertising campaign for the new toothbrush was to be launched in about six weeks. Competition came in May 1939, as Johnson & Johnson began advertising their new Tek toothbrush.*

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