I fail to see any scriptual references to any of these. These appear to be manufactured 'mysteries'; not biblical, but an effigy derived from the bible. Isn't the purpose of the Rosary a means of 'keeping score' on how many times you have repeated a set prayer? Again, I see nothing regarding this in the Old or New Testament.
Consider: Mark 7:7 - Howbeit in vain do they worship me, teaching [for] doctrines the commandments of men.
No, it helps you keep track of where you are. Total, there are (in the original version) 150 Hail Mary's in the full Rosary, one for each Psalm. One of the origins of the Rosary is the uneducated substituting one prayer (the Our Father or a Hail Mary, for example) for each Psalm.