Some of the google easter eggs are:
The Answer to Life, the Universe and Everything
Baker’s Dozen
Bletchley Park
Conway’s Game of Life
Play Atari Breakout in Google Images 
Askew  
Flip a Coin
Fun Facts
Feeling Curious
Roll a Die
Play Solitaire
Server Status 418. I’m a Teapot
Tic Tac Toe or Terni Lapilli
Spinner
Play Dreidel
Once in a Blue Moon
The Number of Horns on a Unicorn
Loneliest Number
Search For “Anagram” Or “Define Anagram”
Blink HTML
Marquee HTML
Do a Barrel Roll
Festivus
Google in 1998
Is Google Down?
Zerg Rush
Search for Recursion
Sonic Easter Egg
Super Mario Bros
Kerning
Pac-Man
3D Easter Egg
Bacon Number 
Valentine’s Day Easter Egg
LGBT
Bubble Level
Pirate Language
Hacker Language
Bork Bork Bork Language
Loch Ness Monster 
Google Mars
Google Moon
Dinosaur Game
What Sound Does a Dog make?
Metronome
Nutrition Info
Converter
The Funniest Joke in the World
Timer
Lego Lovers Build with Chrome
Spelling Numbers
Explore Space with Google Sky
Find Webpage Fonts
Infinity Gauntlet or Thanos from Marvel Comics
Do A Barrel Roll
What Is Nothing
Text Adventure 
Find the Height or Age of Celebrities
Carmen Sandiego Google Earth
Google Gravity
Let Me Google That for You 
But Where is Chuck Norris?
Google Space
Google Sphere
Wizard of Oz
Friends
Breathing Exercise
Color Picker
Random Number Generator
Webdriver Torso
Google Logo History
Google Birthday Surprise Spinner
Snake
Minesweeper
Interactive Fiction
Earth Day Quiz
Google Doodles
I’m Feeling Lucky
LGBT Pride In Google Sheets