
A very specific quirk, but an entertaining one: Google spits out results related to the Book of Genesis from Wikipedia and the website of The Holy See and the band Genesis when you search for some terms related to Sega's Mega Drive console.
It looks like Google's picked up on the fact that Sega's Mega Drive videogame console from the late '80s was named the Sega Genesis in North America, and uses the terms Mega Drive and Genesis interchangeably for results. However, as Twitter user CaptainBalkon found out, it gets its Genesises (Genesus?) confused.