A certain rule is applied to the days expressed in the format of DD/MM/YYYY.

According to that rule,

  • Roberto Matta was a famous painter born on the smallest day of the 20th century.
  • Roger Federer is a famous tennis player born on the largest day of 1981.

According to the same rule,

  • Which country witnessed an uprising on the largest day of the 20th century?
  • Which are the smallest and largest days of the 21st century?

1 Answer 1


Size appears to be related to the number of lit segments of a seven-segment display. The largest digit would be 8, implying all 7 segments are lit; the smallest, 1, implying 2 segments are lit.

Burma/Myanmar, the 8888 Uprising

Largest: 08/08/2088 -- segment count: 6+7+6+7+5+6+7+7 = 51

Smallest: 11/11/2011 -- segment count: 2+2+2+2+5+6+2+2 = 23


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