Colours

Well i've had this question in my mind since I was small.... =.=




















Do different people see colours differently.............?

Lets say, I see the colour of an apple as "red". But to you, my red might be "blue". So you might be actually seeing a "blue" apple. But since we were taught that the colour of an apple is red, both of us call the colour we see, red. Possible?






















Weird..... weird....