I can turn polar bears white?

What riddle is the line I can turn polar bears white? My kid brother in high school said one to me the other week and now I can' t get a hold of him and my girl want's to know the riddle. Can anyone finish this for me?

Alright guys look,

the no and the yes theory are by far ignorant people who give up, no1 makes a riddle with the answer no. why would he go through all that trouble. its like asking can you guess my current location? .. is that a riddle NOO its a question..theres a difference..so get real.

my next point

ur salt and ur pressure theories are very brilliant, and thats their flaw.. if you average joes can guess salt and pressure dont u think harvard students could too. EXACTLY. so we need to get basic here. The sites say the harvard students couldn get it but kindergartners could. so think simple not smart. do you think kindergartners have the slightes clue wat pressure or salt do..doubtful..

I'm 15 and i have two simple guesses. You make wat you want of it.

My first guess is your eyes.. you see all these colors with your eyes and girls comb their hair to make it LOOK good. pancakes are brown and polar bears white because you SEE them that way. if you were a dog pancakes would be gray.

Celebrities LOOK stupid, makup makes girls LOOK like celebrities.

the part that stumps me is how does looking at your eyes make them pop, squeezing them might though.

my other guesses are also just dumb theories but something a kindergartner would say

1. god
2. the sun
3. hair (which is logical except for the pee, the pancakes, and the pops)
4. heat
5. Chuck Norris (jk)
6. water (except the pop

My last entry on this topic.. I love a good, friendly debate
I came across this article:

Anyway, I say the answer to Can you answer this riddle? is No, and most of you seem to agree with me.
However, many of you had ideas including light, heat, God, parents and, oddly, sugar. The two most popular alternative answers were pressure and time. As one of you explained: Polar bears are white because the pressure at the poles is low, so they have to be able to absorb heat. Pressure makes you cry if it's too much. Pressure in your bladder makes you have to pee. Peer pressure makes girls comb their hair. Celebrities usually crack under pressure. Many normal people will shine under pressure. Pancakes turn brown thanks to pressure generated by the heat. Champagne will bubble until the pressure of the carbonation has disappeared. If you squeeze something under pressure, bam, there it goes. If you are 'looking' at pressure, you're in it, like in an airplane, and your ears pop.
That's kind of a stretch if you ask me.
Several of you argued for time and said that answer is based on this poem: The time has come, winter is here and those yellow bears disappear. /The time has past as man looks back with a sigh and a tear in his eye. /As time is held boys cross their legs but of course the toilet begs. /As time marches on girls loose their blush and swap a comb for their brush. /As time passes for those held high their end is nigh. /As time catches up everyone is equal when we get to the final sequel. /As time turns without it we have flour and water. With it we have breakfast for my daughter. /As time revolves how does one turn water and wine into something so fine?/As time runs out the more in a minute you try and squeeze the less you can do with ease./As time ticks all the time that has past man cannot comprehend something so vast.
I still say it's No, but that poem does make a strong case for time. It certainly makes more sense than sugar.

Back to me.. I personally still think it's Yes rather than No because we've all made and argued over several guesses- so we can all definitely guess the riddle, we just don't know if any of our answers really explain all the lines in the riddle.
Again, kindergartners would not be familiar with the poem, so time is out, in my opinion- same reasoning for pressure, light, heat, etc..
I also don't think kindergartners would answer, No. Kids have an amazing belief in their abilities to do things, a sort of self confidence that we unfortunately lose as we grow older- so they would more likely say that, Yes they can guess the riddle and probably offer up a lot of silly and, at times, even amazingly intuitive answers- as we have all done. Harvard students, on the other hand, wouldn't just simply answer Yes, as I believe the author intended- they would give all the complicated explanations, as we've all done. Riddles usually make people think much more than they're supposed to and the answers usually end up being quite simplistic.
It's been fun. I'll enjoy reading your responses.

polar bears aren't white because of pressure. they are white because its cold in the north pole! a polar bears hair is hollow and translucent. so from a far distance it appears to be white. and id like to change my answer. i think 'yes' makes more sense than 'no' because its true wat Kaypauld said about a kindergartener's confidence.

No!!

I was just checking out the internet cause i cant sleep and came across this i have been laughing hysterically for like an hour especially the answer from lukedeyoung with the answer FLOUR!! OMG! After reading all that BS I was so glad to see someone with a sense of humor!! O Man you dont know how bad i needed that laugh!! Thanks