Why you know so many things for the Olympic Games?

Are 22 cal pellet air pistols or Rifles used in Olympics? What race is Tom Detone the guy that host repo games? Why several accidents take place in cold winter mornings? Was Derek Sanderson ever the highest paid pro athlete? Did Rafael Nadal join the 2008 Beijing Olympics? What is 700g in ounces? Cupid is the son of what greek deity? How many times have the Summer Olympic Games been held in North America? How many days did the 2012 Olympics go for? What big event happened in 776 BC? How much did the new Beijing National stadium cost? How much is the value of a 1998-P Kennedy? What does the yellow diamond stand for on the Brazilian flag? How much is 30 grams of silver worth today? How many Spanish-speaking countries are represented at the summer Olympics? How much do oympic athletes get paid for a gol metal? Is there a 1974 Washington quarter without mint? How long does an Olympics event last? What is Olympic haned ball? Is a 2011 50p with 2012 olympic worth anything?