Did ya' know that ...

• It is impossible to lick your elbow.
  
• When you sneeze, your heart stops for a mili-second.
  
• If you sneeze too hard, you can fracture a rib. If you try to suppress a sneeze, you can rupture a blood vessel in your head or neck and die.
  
• It is physically impossible for pigs to look up into the sky.
  
• Rats and horses can't vomit.
  
• The "sixth sick sheik's sixth sheep's sick" is said to be the toughest tongue twister in the English language.
  
• Rats multiply so quickly that in 18 months, two rats could have over a million descendants.
  
• Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.
  
• The cigarette lighter was invented before the match.
  
• Like fingerprints, everyone's tongue print is different.