What are somethings that are physically impossible?

Question

I've heard that you can't l**k your elbow, you can't sneeze without closing your eyes, what are some other things that are physically impossible?

Answer 1

put on mascara without opening yur mouth .

[WHEN YUR NOT CONCETRATING ON CLOSING IT ]

my friend marcus can l**k his elbow.

he has a looooooooong toungue.  

Answer 2

Kissing your elbow.

Answer 3

dont say l**k your elbow because i can do it!

Answer 4

moving ur teeth....

funni<3 answer   http://answers.yahoo.com/question/index;...

Answer 5

Try to bite your ear.......Can't, can you?

Answer 6

Splitting an atom.

Answer 7

eating a sugar doughnut without you l*****g your lips :P.

i think its impossible to rotate your foot in a clockwise direction and at the same time write number 6 with your with your finger in the air (same arm same leg)..

keeping your foot in a clock wise direction while doing it is impossible i guess

Answer 8

you can't spontaneously combust.......

......on purpose

Answer 9

There are many talented people in the world that can defy what most think can't be done. I have to say zilch, nada, nil, zero, etc.