No.
Reproduction always requires a male and a female. Since females don't have sperm, they can't reproduce with each other.
They mate.
Yes, yes they will.
You shouldn't because the male will mate with one of them and parakeets hate being lonely and the other one will be left out....
Yep.
Parakeets do not mate for life. They are monogamous during the breeding season, but they may choose different mates in subsequent seasons.
If they have a mate, yes, unless their human purposely separates them from their mate, the mate dies, etc.
a box
They mate or do a jig then they lay the eggs and sit on them
yes withouth a doubt
I don't know any animal that is really fussy about where to have sex - including parakeets.
budgies and parakeets dont mate they do not need a male to lay an egg so the answer is no season
They do not always.