the international standard paper size A4 measures 29.7 cm x 21 cm

(220,284) is the smallest amicable pair: each number is equal to the sum of the divisors of the other number

the word "moon" appears 51 times in the JKV Bible

Major Zero is a character in the Metal Gear Solid videogames

supposedly, Vincent Van Gogh sold only one painting, namely "The Red Vineyards near Arles"

Mardi Gras '02 is an episode on the long lived Cops, an American half-hour documentary/reality legal series that follows police officers, constables, sheriff's deputies, etc., during patrols and other police activities

"Two by Twos" is one of the names used to denote an international, home-based church founded in 1897 in Ireland by William Irvine

Planet 51 is a 2009 3D computer-animated science fiction/family comedy film

the number of natural satellites of the planet Mercury