[Answer] 1. When it was created in 1931, what useful product was known as 'Polymer 6-6'?

Step 1 : Introduction to the question "1. When it was created in 1931, what useful product was known as 'Polymer 6-6'? "

...1. Paper 2. Plasticine 3. Nylon 4. Dynamite Nylon was synthesised by Wallace Carothers, a scientist at DuPont. It is a strong substance with many uses, from stockings to car tyres, and seatbelts to carpets. Plasticine was invented by a British art teacher in 1899, dynamite was invented by Alfred Nobel and paper was developed by the Chinese more than 2000 years ago.

[Answer] 5. What invention did L�szl� B�r�, a newspaper editor tired of smudges, introduce at the 1931 Budapest International Fair?

Step 1 : Introduction to the question "5. What invention did L�szl� B�r�, a newspaper editor tired of smudges, introduce at the 1931 Budapest International Fair? "

...1. Fountain pen 2. Ballpoint pen 3. Magic Marker 4. Mechanical pencil Biro, a Jew, fled Hungary, eventually settling in Argentina. Although his pen was an improvement on others' ideas, his name was the one that stuck: ballpoint pens are still commonly called "biros" in Britain and Australia. B�r� sold his patent rights to Marcel Bich, who produced the ubiquitous Bic pen, sometimes called the Bic Biro.

[Answer] 5. May 1931 saw the official opening of which iconic building, one of the tallest in the world?

Step 1 : Introduction to the question "5. May 1931 saw the official opening of which iconic building, one of the tallest in the world?"

...1. Big Ben 2. Eiffel Tower 3. Empire State Building 4. CN Tower The Empire State Building was the tallest in the world until 1972, when the North Tower of the World Trade Centre was completed. Following the tragic events of 2001, the Empire State Building again became the tallest building in New York. The Burj Khalifa, in Dubai, became the tallest in the world on its opening in 2010. The Eiffel Tower in Paris was the world's tallest structure from 1889 until 1930 and Toronto's CN Tower held the accolade between 1976 and 2010. The clock tower of Big Ben in London is among the tallest free standing clock towers in the world.