The 7 principles of the Old Regime, in 1 minute

Ancien regime
What is called Old Regime in French Revolution?
Why was the old regime unfair?
Which class did not pay taxes to the king?
What is called as an old regime?
When did the old regime start?
Did most people fall into the second estate during the old regime?
What is called as an old regime?
Which estate paid the most taxes?
Which estate paid the most taxes?
Who paid the least in taxes under the old regime?
What were the 3 estates of the Old Regime?