Season 229 - Last Call !!!

Don’t forget to join Season 229.

The first three questions made by Henrik Mølgaard are:

Day 1: Category: Mathematics

What is the name of the number-placement puzzle played on a 9×9 grid, where each row, column, and 3×3 subgrid must contain all digits from 1 to 9 without repetition? Though based on earlier number puzzles, it rose to global popularity in newspapers and puzzle books during the early 2000s.

Day 2: Category: Architecture

Completed in 1931 during the Great Depression, which New York City skyscraper stood as the world’s tallest building for nearly 40 years? Famously featured in King Kong (1933), this Art Deco landmark remains one of the most recognizable symbols of the Manhattan skyline.

Day 3: Category: Logistics, Transportation and Navigation

First developed in Germany in the early 20th century by Count Ferdinand, which brand of rigid airship was used during World War I for bombing raids over London? It later became famous for luxury passenger travel before disasters like the Hindenburg crash in 1937 ended its golden age.

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