I read them the right way the whole time and was really confused as to why someone would post this until I re-read it and now I feel really uncomfortable/
There are two ways of spelling it. Much like "colour" and "color". We follow British English in India and that's how we spell "realise" while the American way of spelling it is the way you have.
Excuse me? "No need to down vote you"?! You clearly made a mistake (quite an ignorant one) and you never even accepted full responsibility for your ignorance AND were rude to anyone who politely informed you (even though this world moves too fast to care for those who doesn't even know that there can be too spellings of a word)... So please, grow up.
Girls & boys
Gentlemen & ladies
Sister & brother
Bees & birds