A standard Bicycle playing card typically weighs about 1.8 grams (0.063 ounces). This can vary slightly depending on the specific deck and any additional features, but most standard cards fall within this weight range. A full deck of 52 cards, along with two jokers, generally weighs around 100 grams (3.5 ounces).
about 15 ounces
Yes at Nikhil's magic shop.
It depends on what type of card and how large it is.
My weight in gold.
"Weight weenies are a list of how much different bicycle parts weigh. This may include the brakes, wheels, frame, seat, etc..."
It will depend upon the weight and size of the card and obviously where it is been sent from.
A king card is worth 10 points in a standard deck of playing cards.
They are free once you start playing card-jitsu you will receive them.
52
It depends where from, the weight and type of transport
It is hard to say what a collector would pay. Place it in an online auction and find out. You can always put a reserve on it (minimum amount you would accept). It's unlikely to be much though as USPCC sells misprinted decks of Bicycle playing cards known as "Seconds".
Depanding on the model of your bicycle.