Teams, runs and wickets. Mind the format.
Sides of every kind — national teams, county sides and franchises, each named by its country, county or city — crossed with the totals each format keeps: Test runs, wickets and appearances, one-day and Twenty20 milestones — plus Wisden and ICC honours and the Hall of Fame.
Always. A Test wicket and an ODI wicket are different facts, so Test, one-day and Twenty20 milestones are separate conditions with their own thresholds.
Yes. An appearance for a county or a franchise counts exactly as one for a national team: the square asks where a player played, not at what level.