The a in "have" is short, but the syllable is long because it ends in a voiced consonant.
Shorter than 10 minutes.
They are different lengths (and energies) of .22 rimfire cartridges. They are the most commonly sold cartridge in the world.
Dactylic
My guess is the short shorts went out of style as you notice back then more guys use to wear short shorts back then in public but now all these guys wear long shorts