Google's Unique "I'M FEELING LUCKY"

Do all of you know google? what a stupid question, of course 'YES'
Google used to find informations, picture, video, etc.
Do you know the funbction of 'i'm feeling lucky' button here is..
'i'm feeling lucky' button used to find the result fastly, it give you the first data.
But this button have an unique thing
Try to input these words to search engine and click 'i'm feeling lucky' button
xx-bork,
xx-klingon
google linux
google easter egg,
google scholar
google suggest,
early google
elgoog,
google moms
google blog search
google heart page
google mentalplex
google zeitgeist
AND MAKE SURE YOU TRY IT 'TEMUKAN ROY SURYO'
See yaa.