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Explanation

The Sony Walkman was built in 1978 by audio-division engineer Nobutoshi Kihara.

Solve this puzzle

Mark is older than Mary, and Mary is older than Ben. Who is the youngest one?

They are the same age Mark Ben Mary

FUN FACTS ABOUT NUMBERS: 8 and 9

Welcome to the world of numbers 8 and 9! Find out how many sides an umbrella usually have, why the 2008 Summer Olympic Games kicked off at 8 seconds and 8 minutes past 8 pm, and what the most terrifying words in the English language are!