PUMAmens 6 Pack Quarter Crew Socks Men's Socks (pack of 6)

6 socks or 6 pairs?

Would the 10-13 fit a size 6 shoes

are these considered medium or heavy weight ? I want heavy weight. Links for heavy weight please ?

Do these come in a big n tall size, like 15-17? Size 12 only fits shoe size 9 or 10, that's petite.