Here are some trivia that might interest you.  These were e-mailed to me by friends and I still have to find the original writers. 

What does the US Postal Service do with mail it can't deliver?	Why does inhaling helium make your voice sound funny?
Is one dog year really equal to seven human years?	Why are magazines frequently dated so much later than their publication dates?
Why do we feel warmer when we blush?	Why are moths attracted to light?
Why was the Eiffel Tower built?	Do other people really hear your voice differently than you do?
Who determined which way is "clockwise"?	Smoke can get out a chimney, why can't rain get in?
What is the body's largest organ?	What does "Eureka!" mean, and what does its fame have to do   with a naked man?
Why don't birds fall off of the branches they're sleeping  on?	How does quicksand work?
Can you tickle yourself?	Can caffeine be lethal?
How can someone possibly escape "by the skin of her teeth"?	Why are those computer users called "hackers"?
Why is it called a "grandfather clock"?	Do insects ever sneeze or cough loud enough for humans to hear them?
Why do camels have humps?	How does a fly land upside down on the ceiling?
How do microwave ovens heat up food?	How come Superman can fly?
Why isn't the hair on your arms as long as the hair on your head?	Why do computers cause carpal tunnel syndrome but typewriters don't?
If we humans are made of 97 percent water, why doesn't any of it spill?	How does salt melt ice?
Can you be cursed for going into a mummy's tomb?