LISTEN!!! (but that would be way more than 16%) Limit watching sports Lose their friends Wear a certain cologne Manscape or remove all body hair

hmmm..... total WAG here... I'll guess a dime is about 1/2" diameter, and a quarter is about 1" diameter, and figure the grooves are about 1/32" apart, so my guesses are: dime => (.5 * 3.14) * 32 = 48-50 grooves quarter => (1.0 * 3.14) * 32 = 96-100 grooves with the variation being whether they groove them based on a decimal or binary system. :)

the airplane? When I was a kid I went to a museum about the Wright brothers, and they had old cans food on a shelf. lol that pretty much the only thing I remember.

hahahaha! My first thought was the Arbor Foundation, but birds and squirrels definitely makes more sense. :)