Thursday Thirteen

#1 The "sixth sick sheik's sixth sheep's sick" is said to be the toughest tongue twister in the English language.

#2 Wearing headphones for just an hour will increase the bacteria in your ear by 700 times

#3 In every episode of Seinfeld there is a Superman somewhere.

#4 Most lipstick contains fish scales.

#5 If you keep your eyes open by force, they can pop out.

#6 It is physically impossible for pigs to look up into the sky

#7 Horses can't vomit

#8 On average, 100 people choke to death on ballpoint pens every year

#9 It's possible to lead a cow upstairs...but not downstairs

#10 Our eyes are always the same size from birth, but our nose and ears never stop growing.

#11 The electric chair was invented by a dentist. (FIGURES)

#12 A crocodile cannot stick its tongue out.

#13 On average people fear spiders more than they do death?!