I run cold and hot,
I look blue but am red.
What am I?
Blood. People can be referred to as hot blooded, and certain animals are cold-blooded. Your veins look blue, but the blood is actually red.
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11 Comments on "I Run Cold and Hot"
Joshua says December 30, 2014 @ 05:49
That is a really neat riddle but blood IS blue it only turns red when it comes into contact with oxygen such as when you get a paper cut and start bleeding
Dan says December 30, 2014 @ 16:53
@Joshua That’s a common belief, but it’s not true. Blood is always red.
fivebee says December 11, 2015 @ 16:45
Fire. The stove can release some blue fire.
fivebee says December 11, 2015 @ 16:46
@Joshua, @Dan BLOOD?! F**!!!
Chloe says February 1, 2016 @ 00:11
Yay says February 4, 2016 @ 21:06
Roy Grundstrom says May 20, 2016 @ 15:31
THANKS enjoy them on again
Roy Grundstrom says May 20, 2016 @ 15:32
Thanks for being back on
Karla Rodriguez says August 18, 2016 @ 16:47
Yay, shut up says January 26, 2017 @ 13:47
@Dan uhh actually, it is blue but when it come into contact with oxygen, it turns red
Dan says January 28, 2017 @ 13:59
Nope, blood is always red, actually. Veins look blue because light has to penetrate the skin to illuminate them, blue and red light (being of different wavelengths) penetrate with different degrees of success. What makes it back to your eye is the blue light.
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